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potassium hydride


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. - 1500.
A 28.28279
B 60.56758
C -36.41034
D 7.935751
E -0.480344
F -70.26024
G 65.19509
H -57.81995
ReferenceChase, 1998
Comment Data last reviewed in March, 1963
Temperature
(K)
Cp
(J/mol*K)

(J/mol*K)
-(G° - H°298.15)/T
(J/mol*K)
H° - H°298.15
(kJ/mol)
298.37.9050.1650.22-0.02
300.38.0550.4250.220.06
400.44.1962.2651.784.19
500.48.5372.6154.948.84
600.51.9081.7758.6613.87
700.54.5889.9862.5619.20
800.56.7597.4266.4624.77
900.58.49104.270.2830.53
1000.59.90110.473.9936.45
1100.61.02116.277.5742.50
1200.61.91121.681.0148.65
1300.62.64126.584.3354.88
1400.63.24131.287.5161.17
1500.63.78135.690.5767.52

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

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