lithium

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Gas phase thermochemistry data

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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
Δfgas38.07 ± 0.24kcal/molReviewCox, Wagman, et al., 1984CODATA Review value
Δfgas38.074kcal/molReviewChase, 1998Data last reviewed in June, 1962
Quantity Value Units Method Reference Comment
gas,1 bar33.1697 ± 0.0024cal/mol*KReviewCox, Wagman, et al., 1984CODATA Review value
gas,1 bar33.169cal/mol*KReviewChase, 1998Data last reviewed in June, 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) 1620.12 to 6000.
A 5.576979
B -0.662625
C 0.183418
D -0.000859
E -0.008424
F 36.21021
G 39.72001
H 38.07371
ReferenceChase, 1998
Comment Data last reviewed in June, 1962

Condensed phase thermochemistry data

Go To: Top, Gas phase thermochemistry data, Phase change 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
Δfliquid0.569kcal/molReviewChase, 1998Data last reviewed in June, 1962
Quantity Value Units Method Reference Comment
liquid,1 bar8.112cal/mol*KReviewChase, 1998Data last reviewed in June, 1962
Quantity Value Units Method Reference Comment
solid,1 bar6.960 ± 0.048cal/mol*KReviewCox, Wagman, et al., 1984CODATA Review value
Quantity Value Units Method Reference Comment
solid6.953cal/mol*KReviewChase, 1998Data last reviewed in June, 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) 453.69 to 700.700. to 1620.12
A 7.7604506.216291
B -0.6300131.346170
C -1.512220-0.959184
D 1.0110810.208816
E 0.0013590.082254
F -1.701081-1.003751
G 17.7566015.86110
H 0.5688340.568834
ReferenceChase, 1998Chase, 1998
Comment Data last reviewed in June, 1962 Data last reviewed in June, 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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Temperature (K) 298. to 453.
A 40.52390
B -210.9730
C 472.6190
D -355.4761
E -0.384712
F -7.468511
G 98.86391
H 0.000000
ReferenceChase, 1998
Comment Data last reviewed in June, 1962

Phase change data

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Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.

Antoine Equation Parameters

log10(P) = A − (B / (T + C))
    P = vapor pressure (atm)
    T = temperature (K)

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Temperature (K) A B C Reference Comment
298.14 to 1599.994.982607918.984-9.52Hicks, 1963Coefficents calculated by NIST from author's data.
1204. to 1353.1.584211603.966-711.088Hartmann and Schneider, 1929Coefficents calculated by NIST from author's data.

References

Go To: Top, Gas phase thermochemistry data, Condensed phase thermochemistry data, Phase change 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]

Hicks, 1963
Hicks, W.T., Evaluation of Vapor-Pressure Data of Mercury, Lithium, Sodium, and Potassium, J. Chem. Phys., 1963, 38, 8, 1873-1880, https://doi.org/10.1063/1.1733889 . [all data]

Hartmann and Schneider, 1929
Hartmann, H.; Schneider, R., Die Siedetemperaturen von Magnesium, Calcium, Strontium, Barium and Lithium, Z. Anorg. Allg. Chem., 1929, 180, 1, 275-283, https://doi.org/10.1002/zaac.19291800129 . [all data]


Notes

Go To: Top, Gas phase thermochemistry data, Condensed phase thermochemistry data, Phase change data, References