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Potassium fluoride


Solid Phase Heat Capacity (Shomate Equation)

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

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. - 900.900. - 1131.
A 46.53612-254.3834
B 13.96661474.8003
C -2.385212-246.4832
D 2.84467743.88472
E -0.14077043.50900
F -583.5592-398.2930
G 117.9905-212.6434
H -568.6056-568.6056
ReferenceChase, 1998Chase, 1998
Comment Data last reviewed in June, 1969 Data last reviewed in June, 1969
Temperature
(K)
Cp
(J/mol*K)

(J/mol*K)
-(G° - H°298.15)/T
(J/mol*K)
H° - H°298.15
(kJ/mol)
298.48.9866.5266.55-0.01
300.49.0266.8566.560.09
400.51.0481.2568.505.10
500.52.7292.8272.2510.29
600.54.28102.676.5115.64
700.55.83111.180.8521.14
800.57.42118.685.1126.80
900.59.07125.589.2232.63
Temperature
(K)
Cp
(J/mol*K)

(J/mol*K)
-(G° - H°298.15)/T
(J/mol*K)
H° - H°298.15
(kJ/mol)
900.58.99125.589.2132.62
1000.61.33131.893.1638.63
1100.64.02137.896.9444.90

References

Go To: Top, Solid Phase Heat Capacity (Shomate Equation), 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

Go To: Top, Solid Phase Heat Capacity (Shomate Equation), References