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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
Deltafgas46.7 ± 0.2kcal/molReviewCox, Wagman, et al., 1984CODATA Review value
Deltafgas46.654kcal/molReviewChase, 1998Data last reviewed in March, 1962
Quantity Value Units Method Reference Comment
gas,1 bar41.916 ± 0.001cal/mol*KReviewCox, Wagman, et al., 1984CODATA Review value
gas,1 bar41.914cal/mol*KReviewChase, 1998Data last reviewed in March, 1962

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) 2019.022 - 6000.
A -20.47290
B 16.55870
C -3.182959
D 0.200772
E 17.48260
F 79.67220
G 40.64080
H 46.65399
ReferenceChase, 1998
Comment Data last reviewed in March, 1962

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
Deltafliquid1.02kcal/molReviewChase, 1998Data last reviewed in March, 1962
Quantity Value Units Method Reference Comment
liquid,1 bar17.14cal/mol*KReviewChase, 1998Data last reviewed in March, 1962
Quantity Value Units Method Reference Comment
solid,1 bar15.49 ± 0.072cal/mol*KReviewCox, Wagman, et al., 1984CODATA Review value
Quantity Value Units Method Reference Comment
solid15.48cal/mol*KReviewChase, 1998Data last reviewed in March, 1962

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) 600.6 - 2019.022
A 9.083292
B -3.494859
C 1.734100
D -0.246981
E -0.079057
F -1.898740
G 28.39369
H 1.023660
ReferenceChase, 1998
Comment Data last reviewed in March, 1962

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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View table.

Temperature (K) 298. - 600.6
A 5.978609
B 1.300631
C 0.970690
D -0.295462
E -0.002547
F -1.857691
G 22.27510
H 0.000000
ReferenceChase, 1998
Comment Data last reviewed in March, 1962

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. 64417-78-3 bullet 4294967295lead) + lead = CAS Reg. No. 64417-78-3

By formula: (CAS Reg. No. 64417-78-3 bullet 4294967295Pb) + Pb = CAS Reg. No. 64417-78-3

Quantity Value Units Method Reference Comment
Deltar42.98 ± 0.41kcal/molN/AHo, Polak, et al., 1992gas 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]

Ho, Polak, et al., 1992
Ho, J.; Polak, M.L.; Lineberger, W.C., Photoelectron Spectroscopy of Group-IV Heavy Metal Dimers - Sn2-, Pb2-, and SnPb-, J. Chem. Phys., 1992, 96, 1, 144, https://doi.org/10.1063/1.462503 . [all data]


Notes

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