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Cesium

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Gas phase thermochemistry data

Go To: Top, Condensed phase thermochemistry data, 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
Deltafgas18.3 ± 0.24kcal/molReviewCox, Wagman, et al., 1984CODATA Review value
Deltafgas18.28kcal/molReviewChase, 1998Data last reviewed in June, 1968
Quantity Value Units Method Reference Comment
gas,1 bar41.9696 ± 0.0007cal/mol*KReviewCox, Wagman, et al., 1984CODATA Review value
gas,1 bar41.969cal/mol*KReviewChase, 1998Data last reviewed in June, 1968

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 (cal/mol*K)
    H° = standard enthalpy (kcal/mol)
    S° = standard entropy (cal/mol*K)
    t = temperature (K) / 1000.

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Temperature (K) 947.967 - 1000.1000. - 4000.4000. - 6000.
A 4.9679818.234761-43.26979
B -1.354951×10-8-3.29746919.11800
C 1.725201×10-80.987707-2.195451
D -7.377821×10-9-0.0329190.078861
E -9.368041×10-11-0.94416589.40179
F 16.8028013.91510123.7130
G 47.9814150.3213957.90600
H 18.2840018.2840018.28400
ReferenceChase, 1998Chase, 1998Chase, 1998
Comment Data last reviewed in June, 1968 Data last reviewed in June, 1968 Data last reviewed in June, 1968

Condensed phase thermochemistry data

Go To: Top, Gas phase thermochemistry data, 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
Deltafliquid0.500kcal/molReviewChase, 1998Data last reviewed in June, 1968
Quantity Value Units Method Reference Comment
liquid,1 bar22.01cal/mol*KReviewChase, 1998Data last reviewed in June, 1968
Quantity Value Units Method Reference Comment
solid,1 bar20.37 ± 0.096cal/mol*KReviewCox, Wagman, et al., 1984CODATA Review value
Quantity Value Units Method Reference Comment
solid20.35cal/mol*KReviewChase, 1998Data last reviewed in June, 1968

Liquid 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 (cal/mol*K)
    H° = standard enthalpy (kcal/mol)
    S° = standard entropy (cal/mol*K)
    t = temperature (K) / 1000.

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Temperature (K) 301.55 - 947.967
A 7.181250
B 0.121007
C 0.083068
D -0.023772
E 0.047110
F -1.490001
G 30.92180
H 0.498805
ReferenceChase, 1998
Comment Data last reviewed in June, 1968

Solid 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 (cal/mol*K)
    H° = standard enthalpy (kcal/mol)
    S° = standard entropy (cal/mol*K)
    t = temperature (K) / 1000.

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Temperature (K) 298. - 301.55
A 13.63390
B -11.95110
C 11.60600
D -3.998141
E -0.292496
F -4.608980
G 38.28901
H 0.000000
ReferenceChase, 1998
Comment Data last reviewed in June, 1968

Reaction thermochemistry data

Go To: Top, Gas phase thermochemistry data, Condensed 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 by: John E. Bartmess

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.

Individual Reactions

(CAS Reg. No. 501951-35-5 bullet 4294967295Cesium) + Cesium = CAS Reg. No. 501951-35-5

By formula: (CAS Reg. No. 501951-35-5 bullet 4294967295Cs) + Cs = CAS Reg. No. 501951-35-5

Quantity Value Units Method Reference Comment
Deltar23.9 ± 1.0kcal/molTherMiller, Leopold, et al., 1986gas phase; Extrapolated by polarizability and radius from experimental data.

(Bromine anion bullet 4294967295Cesium) + Cesium = Bromine anion

By formula: (Br- bullet 4294967295Cs) + Cs = Br-

Quantity Value Units Method Reference Comment
Deltar29.80 ± 0.96kcal/molN/AMiller, Leopold, et al., 1986gas phase; Extrapolated by polarizability and radius from experimental data.

(CAS Reg. No. 131026-50-1 bullet 4294967295Cesium) + Cesium = CAS Reg. No. 131026-50-1

By formula: (CAS Reg. No. 131026-50-1 bullet 4294967295Cs) + Cs = CAS Reg. No. 131026-50-1

Quantity Value Units Method Reference Comment
Deltar10.69 ± 0.61kcal/molN/AMcHugh, Eaton, et al., 1989gas phase; Vertical Detachment Energy: 0.511±0.010 eV

(CAS Reg. No. 106070-96-6 bullet 4294967295Cesium) + Cesium = CAS Reg. No. 106070-96-6

By formula: (CAS Reg. No. 106070-96-6 bullet 4294967295Cs) + Cs = CAS Reg. No. 106070-96-6

Quantity Value Units Method Reference Comment
Deltar31.7 ± 2.3kcal/molN/AMiller, Leopold, et al., 1986gas phase

References

Go To: Top, Gas phase thermochemistry data, Condensed 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.

Cox, Wagman, et al., 1984
Cox, J.D.; Wagman, D.D.; Medvedev, V.A., CODATA Key Values for Thermodynamics, Hemisphere Publishing Corp., New York, 1984, 1. [all data]

Chase, 1998
Chase, M.W., Jr., NIST-JANAF Themochemical Tables, Fourth Edition, J. Phys. Chem. Ref. Data, Monograph 9, 1998, 1-1951. [all data]

Miller, Leopold, et al., 1986
Miller, T.M.; Leopold, D.G.; Murray, K.K.; Lineberger, W.C., Electron Affinities of the Alkali Halides and the Structure of their Negative Ions, J. Chem. Phys., 1986, 85, 5, 2368, https://doi.org/10.1063/1.451091 . [all data]

McHugh, Eaton, et al., 1989
McHugh, K.M.; Eaton, J.G.; Lee, G.H.; Sarkas, H.W.; Kidder, L.H.; Snodgrass, J.T.; Manaa, M.R.; Bowen, K.H., Photoelectron Spectra of the alkali metal cluster Anions: Na-,n=2-5, K-,n=2-7, Rb-,n=2-3, and Cs-,n=2-3, J. Chem. Phys., 1989, 91, 6, 3792, https://doi.org/10.1063/1.456861 . [all data]


Notes

Go To: Top, Gas phase thermochemistry data, Condensed phase thermochemistry data, Reaction thermochemistry data, References