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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-346.51kJ/molReviewChase, 1998Data last reviewed in March, 1978
Quantity Value Units Method Reference Comment
liquid,1 bar141.17J/mol*KReviewChase, 1998Data last reviewed in March, 1978
Quantity Value Units Method Reference Comment
Deltafsolid-376.56kJ/molReviewChase, 1998Data last reviewed in March, 1978
Quantity Value Units Method Reference Comment
solid115.06J/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 (J/mol*K)
    H° = standard enthalpy (kJ/mol)
    S° = standard entropy (J/mol*K)
    t = temperature (K) / 1000.

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Temperature (K) 1221. - 3000.
A 100.9603
B 6.043036×10-8
C -2.627381×10-8
D 3.831963×10-9
E 1.035846×10-8
F -386.7844
G 242.4812
H -346.5063
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 (J/mol*K)
    H° = standard enthalpy (kJ/mol)
    S° = standard entropy (J/mol*K)
    t = temperature (K) / 1000.

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Temperature (K) 298. - 800.800. - 1050.1050. - 1221.
A 69.1722081853.30-219.1790
B 16.75400-157961.0607.2850
C 13.43840113333.0-381.9350
D -6.573700-28439.4085.26800
E -0.045088-8628.28051.00700
F -398.1860-42482.30-238.6090
G 192.9800106679.0-198.2940
H -376.5600-376.5600-376.5600
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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