Oxygen
- Formula: O2
- Molecular weight: 31.9988
- IUPAC Standard InChI:
- InChI=1S/O2/c1-2
- Download the identifier in a file.
- IUPAC Standard InChIKey: MYMOFIZGZYHOMD-UHFFFAOYSA-N
- CAS Registry Number: 7782-44-7
- Chemical structure:
This structure is also available as a 2d Mol file or as a computed 3d SD file
The 3d structure may be viewed using Java or Javascript. - Other names: Molecular oxygen; Oxygen molecule; Pure oxygen; O2; Liquid oxygen; UN 1072; UN 1073; Dioxygen
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- Information on this page:
- Other data available:
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Gas phase thermochemistry data
Go To: Top, Reaction thermochemistry data, References, Notes
Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
S°gas,1 bar | 205.152 ± 0.005 | J/mol*K | Review | Cox, Wagman, et al., 1984 | CODATA Review value |
S°gas,1 bar | 205.15 | J/mol*K | Review | Chase, 1998 | Data last reviewed in March, 1977 |
Gas Phase Heat Capacity (Shomate Equation)
Cp° = A + B*t + C*t2 + D*t3 +
E/t2
H° − H°298.15= A*t + B*t2/2 +
C*t3/3 + D*t4/4 − E/t + F − H
S° = A*ln(t) + B*t + C*t2/2 + D*t3/3 −
E/(2*t2) + G
Cp = heat capacity (J/mol*K)
H° = standard enthalpy (kJ/mol)
S° = standard entropy (J/mol*K)
t = temperature (K) / 1000.
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Temperature (K) | 100. - 700. | 700. - 2000. | 2000. - 6000. |
---|---|---|---|
A | 31.32234 | 30.03235 | 20.91111 |
B | -20.23531 | 8.772972 | 10.72071 |
C | 57.86644 | -3.988133 | -2.020498 |
D | -36.50624 | 0.788313 | 0.146449 |
E | -0.007374 | -0.741599 | 9.245722 |
F | -8.903471 | -11.32468 | 5.337651 |
G | 246.7945 | 236.1663 | 237.6185 |
H | 0.0 | 0.0 | 0.0 |
Reference | Chase, 1998 | Chase, 1998 | Chase, 1998 |
Comment | Data last reviewed in March, 1977; New parameter fit January 2009 | Data last reviewed in March, 1977; New parameter fit January 2009 | Data last reviewed in March, 1977; New parameter fit January 2009 |
Reaction thermochemistry data
Go To: Top, Gas phase thermochemistry data, References, Notes
Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.
Data compiled as indicated in comments:
B - John E. Bartmess
M - Michael M. Meot-Ner (Mautner) and Sharon G. Lias
ALS - Hussein Y. Afeefy, Joel F. Liebman, and Stephen E. Stein
Note: Please consider using the reaction search for this species. This page allows searching of all reactions involving this species. A general reaction search form is also available. Future versions of this site may rely on reaction search pages in place of the enumerated reaction displays seen below.
Reactions 1 to 50
By formula: O2- + O2 = (O2- O2)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
![]() | 48. ± 20. | kJ/mol | AVG | N/A | Average of 5 out of 7 values; Individual data points |
Quantity | Value | Units | Method | Reference | Comment |
![]() | 102. | J/mol*K | PHPMS | Hiraoka, 1988 | gas phase; M |
![]() | 130. | J/mol*K | PHPMS | Conway and Nesbit, 1968 | gas phase; M |
Quantity | Value | Units | Method | Reference | Comment |
![]() | 13. ± 4.6 | kJ/mol | TDAs | Hiraoka, 1888 | gas phase; see also Sherwood, Hanold, et al., 1996. Aquino, Taylor, et al., 2001 calns indicate rectangular anion; B |
![]() | 23. ± 4.2 | kJ/mol | IMRE | Payzant J.D. and Kebarle, 1972 | gas phase; B |
![]() | 13. ± 4.2 | kJ/mol | IMRE | Pack and Phelps, 1971 | gas phase; B |
![]() | 16.7 ± 2.1 | kJ/mol | IMRE | Parkes, 1971 | gas phase; B |
![]() | 16. ± 4.2 | kJ/mol | TDAs | Conway and Nesbit, 1968 | gas phase; B |
Free energy of reaction
![]() |
T (K) | Method | Reference | Comment |
---|---|---|---|---|
15. | 300. | DT | Pack and Phelps, 1971 | gas phase; M |
By formula: O2+ + O2 = (O2+ O2)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
![]() | 41. ± 5. | kJ/mol | AVG | N/A | Average of 5 out of 6 values; Individual data points |
Quantity | Value | Units | Method | Reference | Comment |
![]() | 78.7 | J/mol*K | PHPMS | Hiraoka, 1988 | gas phase; M |
![]() | 104.7 | J/mol*K | PHPMS | Conway and Janik, 1970 | gas phase; M |
![]() | 84. | J/mol*K | PHPMS | Durden, Kebarle, et al., 1969 | gas phase; M |
![]() | 86.2 | J/mol*K | PHPMS | Yang and Conway, 1964 | gas phase; M |
Free energy of reaction
![]() |
T (K) | Method | Reference | Comment |
---|---|---|---|---|
16. | 300. | DT | Rakshit and Warneck, 1981 | gas phase; M |
14. | 300. | DT | Rakshit and Warneck, 1980 | gas phase; M |
14. | 296. | FA | Howard, Bierbaum, et al., 1972 | gas phase; M |
25. | 200. | FA | Adams and Bohme, 1970 | gas phase; M |
By formula: (HO2+ 2O2) + O2 = (HO2+
3O2)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
![]() | 11. ± 1. | kJ/mol | PHPMS | Hiraoka and Mori, 1989 | gas phase; M |
![]() | 13. | kJ/mol | PHPMS | Hiraoka, Saluja, et al., 1979 | gas phase; Entropy change calculated or estimated; M |
Quantity | Value | Units | Method | Reference | Comment |
![]() | 76.6 | J/mol*K | PHPMS | Hiraoka and Mori, 1989 | gas phase; M |
![]() | 84. | J/mol*K | N/A | Hiraoka, Saluja, et al., 1979 | gas phase; Entropy change calculated or estimated; M |
Free energy of reaction
![]() |
T (K) | Method | Reference | Comment |
---|---|---|---|---|
4.6 | 105. | PHPMS | Hiraoka, Saluja, et al., 1979 | gas phase; Entropy change calculated or estimated; M |
By formula: (O2- 7N2
O2) + N2 = (O2-
8N2
O2)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
![]() | 7. ± 1. | kJ/mol | PHPMS | Hiraoka, 1988, 2 | gas phase; M |
![]() | 6.40 | kJ/mol | PHPMS | Hiraoka, 1988, 2 | gas phase; Entropy change calculated or estimated; M |
Quantity | Value | Units | Method | Reference | Comment |
![]() | 74.9 | J/mol*K | PHPMS | Hiraoka, 1988, 2 | gas phase; M |
![]() | 75.3 | J/mol*K | N/A | Hiraoka, 1988, 2 | gas phase; Entropy change calculated or estimated; M |
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
![]() | 130. | kJ/mol | PDiss | Hiller and Vestal, 1981 | gas phase; From thermochemical cycle, «DELTA»rH<; M |
![]() | 163. | kJ/mol | PES | Novich, Engelking, et al., 1979 | gas phase; From thermochemical cycle, from EA(O3), D(O-O2) AND EA(O); M |
![]() | 160. | kJ/mol | PDiss | Cosby, Moseley, et al., 1978 | gas phase; M |
![]() | 180. | kJ/mol | CID | Lifschitz, Wu, et al., 1978 | gas phase; M |
By formula: (O2+ O2) + O2 = (O2+
2O2)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
![]() | 25. ± 1. | kJ/mol | PHPMS | Hiraoka, 1988 | gas phase; M |
![]() | 28.7 ± 0.3 | kJ/mol | PHPMS | Conway and Janik, 1970 | gas phase; M |
Quantity | Value | Units | Method | Reference | Comment |
![]() | 110. | J/mol*K | PHPMS | Hiraoka, 1988 | gas phase; M |
![]() | 133.0 | J/mol*K | PHPMS | Conway and Janik, 1970 | gas phase; M |
By formula: (HO2+ O2) + O2 = (HO2+
2O2)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
![]() | 29. ± 1. | kJ/mol | PHPMS | Hiraoka and Mori, 1989 | gas phase; M |
![]() | 28. | kJ/mol | PHPMS | Hiraoka, Saluja, et al., 1979 | gas phase; M |
Quantity | Value | Units | Method | Reference | Comment |
![]() | 96.7 | J/mol*K | PHPMS | Hiraoka and Mori, 1989 | gas phase; M |
![]() | 92. | J/mol*K | PHPMS | Hiraoka, Saluja, et al., 1979 | gas phase; M |
By formula: (O2+ 3O2) + O2 = (O2+
4O2)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
![]() | 9.0 ± 0.8 | kJ/mol | PHPMS | Hiraoka, 1988 | gas phase; M |
![]() | 10.3 ± 0.75 | kJ/mol | PHPMS | Conway and Janik, 1970 | gas phase; M |
Quantity | Value | Units | Method | Reference | Comment |
![]() | 88.7 | J/mol*K | PHPMS | Hiraoka, 1988 | gas phase; M |
![]() | 100. | J/mol*K | PHPMS | Conway and Janik, 1970 | gas phase; M |
By formula: (O2+ 2O2) + O2 = (O2+
3O2)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
![]() | 10.4 ± 0.8 | kJ/mol | PHPMS | Hiraoka, 1988 | gas phase; M |
![]() | 10.6 ± 0.4 | kJ/mol | PHPMS | Conway and Janik, 1970 | gas phase; M |
Quantity | Value | Units | Method | Reference | Comment |
![]() | 78.2 | J/mol*K | PHPMS | Hiraoka, 1988 | gas phase; M |
![]() | 82.8 | J/mol*K | PHPMS | Conway and Janik, 1970 | gas phase; M |
By formula: (O2+ 4O2) + O2 = (O2+
5O2)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
![]() | 8.0 ± 0.8 | kJ/mol | PHPMS | Hiraoka, 1988 | gas phase; M |
![]() | 8. ± 3. | kJ/mol | PHPMS | Conway and Janik, 1970 | gas phase; M |
Quantity | Value | Units | Method | Reference | Comment |
![]() | 89.5 | J/mol*K | PHPMS | Hiraoka, 1988 | gas phase; M |
![]() | 71.1 | J/mol*K | PHPMS | Conway and Janik, 1970 | gas phase; M |
By formula: O3- + O2 = (O3- O2)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
![]() | 8.79 ± 0.84 | kJ/mol | TDAs | Hiraoka, 1988, 2 | gas phase; B,M |
Quantity | Value | Units | Method | Reference | Comment |
![]() | 79.5 | J/mol*K | PHPMS | Hiraoka, 1988, 2 | gas phase; M |
Quantity | Value | Units | Method | Reference | Comment |
![]() | -15.1 ± 2.1 | kJ/mol | TDAs | Hiraoka, 1988, 2 | gas phase; B |
By formula: NO- + O2 = (NO- O2)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
![]() | 12.1 ± 0.8 | kJ/mol | PHPMS | Hiraoka and Yamabe, 1991 | gas phase; M |
Quantity | Value | Units | Method | Reference | Comment |
![]() | 60.7 | J/mol*K | PHPMS | Hiraoka and Yamabe, 1991 | gas phase; M |
Free energy of reaction
![]() |
T (K) | Method | Reference | Comment |
---|---|---|---|---|
-2. | 200. | FA | Dunkin, Fehsenfeld, et al., 1971 | gas phase; DG>; M |
By formula: (O2- 6O2) + O2 = (O2-
7O2)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
![]() | 5.86 | kJ/mol | PHPMS | Hiraoka, 1988 | gas phase; Entropy change calculated or estimated; M |
Quantity | Value | Units | Method | Reference | Comment |
![]() | 67. | J/mol*K | N/A | Hiraoka, 1988 | gas phase; Entropy change calculated or estimated; M |
By formula: (O2+ 7O2) + O2 = (O2+
8O2)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
![]() | 7.61 | kJ/mol | PHPMS | Hiraoka, 1988 | gas phase; Entropy change calculated or estimated; M |
Quantity | Value | Units | Method | Reference | Comment |
![]() | 92. | J/mol*K | N/A | Hiraoka, 1988 | gas phase; Entropy change calculated or estimated; M |
By formula: (O2+ O2) + N2 = (O2+
N2
O2)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
![]() | 12. | kJ/mol | HPMS | Speller and Fitaire, 1983 | gas phase; Entropy change is questionable; M |
Quantity | Value | Units | Method | Reference | Comment |
![]() | 42.3 | J/mol*K | HPMS | Speller and Fitaire, 1983 | gas phase; Entropy change is questionable; M |
By formula: (H3+ O2) + O2 = (H3+
2O2)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
![]() | 48.1 | kJ/mol | PHPMS | Hiraoka, Saluja, et al., 1979 | gas phase; From thermochemical cycle(O2H+)O2; M |
Quantity | Value | Units | Method | Reference | Comment |
![]() | 92. | J/mol*K | PHPMS | Hiraoka, Saluja, et al., 1979 | gas phase; From thermochemical cycle(O2H+)O2; M |
By formula: (O3- 4O2) + O2 = (O3-
5O2)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
![]() | 6.44 | kJ/mol | PHPMS | Hiraoka, 1988, 2 | gas phase; «DELTA»rH, «DELTA»rS approximate; M |
Quantity | Value | Units | Method | Reference | Comment |
![]() | 68.6 | J/mol*K | PHPMS | Hiraoka, 1988, 2 | gas phase; «DELTA»rH, «DELTA»rS approximate; M |
By formula: H3+ + O2 = (H3+ O2)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
![]() | 52.3 | kJ/mol | PHPMS | Hiraoka, Saluja, et al., 1979 | gas phase; From thermochemical cycle(O2H+)O2; M |
Quantity | Value | Units | Method | Reference | Comment |
![]() | 82.0 | J/mol*K | PHPMS | Hiraoka, Saluja, et al., 1979 | gas phase; From thermochemical cycle(O2H+)O2; M |
By formula: (O2S- 2O2S
O2) + O2S = (O2S-
3O2S
O2)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
![]() | 15.1 ± 1.7 | kJ/mol | TDAs | Vacher, Jorda, et al., 1992 | gas phase; B |
Quantity | Value | Units | Method | Reference | Comment |
![]() | 6. ± 13. | kJ/mol | TDAs | Vacher, Jorda, et al., 1992 | gas phase; B |
By formula: (O2S- O2S
O2) + O2S = (O2S-
2O2S
O2)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
![]() | 19.2 ± 1.7 | kJ/mol | TDAs | Vacher, Jorda, et al., 1992 | gas phase; B |
Quantity | Value | Units | Method | Reference | Comment |
![]() | 10. ± 8.4 | kJ/mol | TDAs | Vacher, Jorda, et al., 1992 | gas phase; B |
By formula: (O3S- O2S
O2) + O2S = (O3S-
2O2S
O2)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
![]() | 23.8 ± 2.5 | kJ/mol | TDAs | Vacher, Jorda, et al., 1992 | gas phase; B |
Quantity | Value | Units | Method | Reference | Comment |
![]() | 15. ± 8.8 | kJ/mol | TDAs | Vacher, Jorda, et al., 1992 | gas phase; B |
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
![]() | 179. | kJ/mol | PDiss | Hiller and Vestal, 1982 | gas phase; M |
![]() | 200. | kJ/mol | PI | Linn, Ono, et al., 1981 | gas phase; M |
![]() | 209. | kJ/mol | PDiss | Mosely, Ozenne, et al., 1981 | gas phase; M |
By formula: (O3S- O2) + O2S = (O3S-
O2S
O2)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
![]() | 27.2 ± 3.3 | kJ/mol | TDAs | Vacher, Jorda, et al., 1992 | gas phase; B |
Quantity | Value | Units | Method | Reference | Comment |
![]() | 18. ± 9.2 | kJ/mol | TDAs | Vacher, Jorda, et al., 1992 | gas phase; B |
By formula: (O2S- O2) + O2S = (O2S-
O2S
O2)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
![]() | 46.0 ± 4.2 | kJ/mol | TDAs | Vacher, Jorda, et al., 1992 | gas phase; B |
Quantity | Value | Units | Method | Reference | Comment |
![]() | 26. ± 9.2 | kJ/mol | TDAs | Vacher, Jorda, et al., 1992 | gas phase; B |
By formula: (O2- 2N2
O2) + N2 = (O2-
3N2
O2)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
![]() | 10.3 ± 0.8 | kJ/mol | PHPMS | Hiraoka, 1988, 2 | gas phase; M |
Quantity | Value | Units | Method | Reference | Comment |
![]() | 76.6 | J/mol*K | PHPMS | Hiraoka, 1988, 2 | gas phase; M |
By formula: (O2- 3N2
O2) + N2 = (O2-
4N2
O2)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
![]() | 9.0 ± 0.8 | kJ/mol | PHPMS | Hiraoka, 1988, 2 | gas phase; M |
Quantity | Value | Units | Method | Reference | Comment |
![]() | 78.2 | J/mol*K | PHPMS | Hiraoka, 1988, 2 | gas phase; M |
By formula: (O2- 4N2
O2) + N2 = (O2-
5N2
O2)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
![]() | 8.1 ± 0.8 | kJ/mol | PHPMS | Hiraoka, 1988, 2 | gas phase; M |
Quantity | Value | Units | Method | Reference | Comment |
![]() | 81.6 | J/mol*K | PHPMS | Hiraoka, 1988, 2 | gas phase; M |
By formula: (O2- 5N2
O2) + N2 = (O2-
6N2
O2)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
![]() | 7.6 ± 0.8 | kJ/mol | PHPMS | Hiraoka, 1988, 2 | gas phase; M |
Quantity | Value | Units | Method | Reference | Comment |
![]() | 81.6 | J/mol*K | PHPMS | Hiraoka, 1988, 2 | gas phase; M |
By formula: (O2- 6N2
O2) + N2 = (O2-
7N2
O2)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
![]() | 7.1 ± 0.8 | kJ/mol | PHPMS | Hiraoka, 1988, 2 | gas phase; M |
Quantity | Value | Units | Method | Reference | Comment |
![]() | 78.7 | J/mol*K | PHPMS | Hiraoka, 1988, 2 | gas phase; M |
By formula: (O2- N2
O2) + N2 = (O2-
2N2
O2)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
![]() | 11.7 ± 0.8 | kJ/mol | PHPMS | Hiraoka, 1988, 2 | gas phase; M |
Quantity | Value | Units | Method | Reference | Comment |
![]() | 74.9 | J/mol*K | PHPMS | Hiraoka, 1988, 2 | gas phase; M |
By formula: (NO- 2O2) + O2 = (NO-
3O2)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
![]() | 11.8 ± 0.8 | kJ/mol | PHPMS | Hiraoka and Yamabe, 1991 | gas phase; M |
Quantity | Value | Units | Method | Reference | Comment |
![]() | 65.7 | J/mol*K | PHPMS | Hiraoka and Yamabe, 1991 | gas phase; M |
By formula: (NO- 3O2) + O2 = (NO-
4O2)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
![]() | 10.2 ± 0.8 | kJ/mol | PHPMS | Hiraoka and Yamabe, 1991 | gas phase; M |
Quantity | Value | Units | Method | Reference | Comment |
![]() | 67.4 | J/mol*K | PHPMS | Hiraoka and Yamabe, 1991 | gas phase; M |
By formula: (NO- 4O2) + O2 = (NO-
5O2)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
![]() | 9.8 ± 0.8 | kJ/mol | PHPMS | Hiraoka and Yamabe, 1991 | gas phase; M |
Quantity | Value | Units | Method | Reference | Comment |
![]() | 80.3 | J/mol*K | PHPMS | Hiraoka and Yamabe, 1991 | gas phase; M |
By formula: (NO- O2) + O2 = (NO-
2O2)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
![]() | 12.1 ± 0.8 | kJ/mol | PHPMS | Hiraoka and Yamabe, 1991 | gas phase; M |
Quantity | Value | Units | Method | Reference | Comment |
![]() | 65.7 | J/mol*K | PHPMS | Hiraoka and Yamabe, 1991 | gas phase; M |
By formula: (HO2+ 3O2) + O2 = (HO2+
4O2)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
![]() | 11. ± 1. | kJ/mol | PHPMS | Hiraoka and Mori, 1989 | gas phase; M |
Quantity | Value | Units | Method | Reference | Comment |
![]() | 88.3 | J/mol*K | PHPMS | Hiraoka and Mori, 1989 | gas phase; M |
By formula: (HO2+ 4O2) + O2 = (HO2+
5O2)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
![]() | 9. ± 1. | kJ/mol | PHPMS | Hiraoka and Mori, 1989 | gas phase; M |
Quantity | Value | Units | Method | Reference | Comment |
![]() | 91.6 | J/mol*K | PHPMS | Hiraoka and Mori, 1989 | gas phase; M |
By formula: (HO2+ 5O2) + O2 = (HO2+
6O2)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
![]() | 8. ± 1. | kJ/mol | PHPMS | Hiraoka and Mori, 1989 | gas phase; M |
Quantity | Value | Units | Method | Reference | Comment |
![]() | 93.3 | J/mol*K | PHPMS | Hiraoka and Mori, 1989 | gas phase; M |
By formula: (HO2+ 6O2) + O2 = (HO2+
7O2)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
![]() | 8. ± 1. | kJ/mol | PHPMS | Hiraoka and Mori, 1989 | gas phase; M |
Quantity | Value | Units | Method | Reference | Comment |
![]() | 94.1 | J/mol*K | PHPMS | Hiraoka and Mori, 1989 | gas phase; M |
By formula: (HO2+ 7O2) + O2 = (HO2+
8O2)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
![]() | 8. ± 1. | kJ/mol | PHPMS | Hiraoka and Mori, 1989 | gas phase; M |
Quantity | Value | Units | Method | Reference | Comment |
![]() | 88.3 | J/mol*K | PHPMS | Hiraoka and Mori, 1989 | gas phase; M |
By formula: (HO2+ 8O2) + O2 = (HO2+
9O2)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
![]() | 7. ± 1. | kJ/mol | PHPMS | Hiraoka and Mori, 1989 | gas phase; M |
Quantity | Value | Units | Method | Reference | Comment |
![]() | 86.2 | J/mol*K | PHPMS | Hiraoka and Mori, 1989 | gas phase; M |
By formula: (HO2+ O2) + H2 = (HO2+
H2
O2)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
![]() | 17. | kJ/mol | PHPMS | Hiraoka, Saluja, et al., 1979 | gas phase; M |
Quantity | Value | Units | Method | Reference | Comment |
![]() | 71. | J/mol*K | PHPMS | Hiraoka, Saluja, et al., 1979 | gas phase; M |
By formula: (O2- O2) + N2 = (O2-
N2
O2)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
![]() | 12.0 ± 0.8 | kJ/mol | PHPMS | Hiraoka, 1988, 2 | gas phase; M |
Quantity | Value | Units | Method | Reference | Comment |
![]() | 69.0 | J/mol*K | PHPMS | Hiraoka, 1988, 2 | gas phase; M |
By formula: 2C2H6S + O2 = 2C2H6OS
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
![]() | -277.7 ± 0.84 | kJ/mol | Cm | Douglas, 1946 | liquid phase; Reanalyzed by Cox and Pilcher, 1970, Original value = -278.3 ± 0.8 kJ/mol; At 291°K; ALS |
By formula: C2H6O2S = C2H6OS + 0.5O2
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
![]() | 243.3 ± 0.84 | kJ/mol | Cm | Douglas, 1946 | liquid phase; Reanalyzed by Cox and Pilcher, 1970, Original value = 246.9 ± 0.8 kJ/mol; At 291°K; ALS |
By formula: (O2- 2O2) + O2 = (O2-
3O2)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
![]() | 10.0 ± 0.8 | kJ/mol | PHPMS | Hiraoka, 1988 | gas phase; M |
Quantity | Value | Units | Method | Reference | Comment |
![]() | 89.1 | J/mol*K | PHPMS | Hiraoka, 1988 | gas phase; M |
By formula: (O2- 3O2) + O2 = (O2-
4O2)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
![]() | 7. ± 1. | kJ/mol | PHPMS | Hiraoka, 1988 | gas phase; M |
Quantity | Value | Units | Method | Reference | Comment |
![]() | 64.4 | J/mol*K | PHPMS | Hiraoka, 1988 | gas phase; M |
By formula: (O2- 4O2) + O2 = (O2-
5O2)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
![]() | 6.4 ± 0.8 | kJ/mol | PHPMS | Hiraoka, 1988 | gas phase; M |
Quantity | Value | Units | Method | Reference | Comment |
![]() | 64.4 | J/mol*K | PHPMS | Hiraoka, 1988 | gas phase; M |
By formula: (O2- 5O2) + O2 = (O2-
6O2)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
![]() | 6. ± 1. | kJ/mol | PHPMS | Hiraoka, 1988 | gas phase; M |
Quantity | Value | Units | Method | Reference | Comment |
![]() | 67.8 | J/mol*K | PHPMS | Hiraoka, 1988 | gas phase; M |
By formula: (O2+ 5O2) + O2 = (O2+
6O2)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
![]() | 8. ± 1. | kJ/mol | PHPMS | Hiraoka, 1988 | gas phase; M |
Quantity | Value | Units | Method | Reference | Comment |
![]() | 90.8 | J/mol*K | PHPMS | Hiraoka, 1988 | gas phase; M |
By formula: (O2+ 6O2) + O2 = (O2+
7O2)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
![]() | 8. ± 2. | kJ/mol | PHPMS | Hiraoka, 1988 | gas phase; M |
Quantity | Value | Units | Method | Reference | Comment |
![]() | 91.6 | J/mol*K | PHPMS | Hiraoka, 1988 | gas phase; M |
References
Go To: Top, Gas phase thermochemistry data, Reaction thermochemistry data, Notes
Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.
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Hydration of Oxygen Negative Ions,
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Electron Attachment and Negative Ion-Molecule Reactions in Pure O2,
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Kinetics and Mechanism of Formation of Water Cluster Ions from O2+ and H2O+,
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Flowing Afterglow Studies of Formation and Reactions of Cluster Ions of O2+, O2-, and O-,
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Notes
Go To: Top, Gas phase thermochemistry data, Reaction thermochemistry data, References
- Symbols used in this document:
S°gas,1 bar Entropy of gas at standard conditions (1 bar) T Temperature rG°
Free energy of reaction at standard conditions rH°
Enthalpy of reaction at standard conditions rS°
Entropy of reaction at standard conditions - Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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