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dipotassium sulphide


Condensed 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
Deltafliquid-82.818kcal/molReviewChase, 1998Data last reviewed in March, 1978
Quantity Value Units Method Reference Comment
liquid,1 bar33.740cal/mol*KReviewChase, 1998Data last reviewed in March, 1978
Quantity Value Units Method Reference Comment
Deltafsolid-90.000kcal/molReviewChase, 1998Data last reviewed in March, 1978
Quantity Value Units Method Reference Comment
solid27.500cal/mol*KReviewChase, 1998Data last reviewed in March, 1978

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) 1221. - 3000.
A 24.13009
B 1.444321×10-8
C -6.279589×10-9
D 9.158609×10-10
E 2.475729×10-9
F -92.44369
G 57.95440
H -82.81699
ReferenceChase, 1998
Comment Data last reviewed in March, 1978

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. - 800.800. - 1050.1050. - 1221.
A 16.5325519563.41-52.38504
B 4.004303-37753.59145.1446
C 3.21185527087.24-91.28466
D -1.571153-6797.18020.37954
E -0.010776-2062.20812.19097
F -95.16874-10153.51-57.02892
G 46.1233325496.89-47.39340
H -90.00000-90.00000-90.00000
ReferenceChase, 1998Chase, 1998Chase, 1998
Comment Data last reviewed in March, 1978 Data last reviewed in March, 1978 Data last reviewed in March, 1978

References

Go To: Top, Condensed phase thermochemistry data, Notes

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

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


Notes

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