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Potassium fluoride


Gas 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 (cal/mol*K)
    H° = standard enthalpy (kcal/mol)
    S° = standard entropy (cal/mol*K)
    t = temperature (K) / 1000.

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Temperature (K) 3000. - 6000.
A 8.893191
B 0.206001
C -0.011391
D 0.000973
E -0.048214
F -80.92220
G 64.58970
H -78.10000
ReferenceChase, 1998
Comment Data last reviewed in June, 1969
Temperature
(K)
Cp
(cal/mol*K)

(cal/mol*K)
-(G° - H°298.15)/T
(cal/mol*K)
H° - H°298.15
(kcal/mol)
3000.9.4374.9466.7024.72
3100.9.4575.2566.9725.66
3200.9.4675.5567.2326.61
3300.9.4875.8467.4927.55
3400.9.5076.1267.7428.50
3500.9.5176.4067.9829.45
3600.9.5376.6768.2230.41
3700.9.5576.9368.4531.36
3800.9.5677.1868.6832.31
3900.9.5877.4368.9033.27
4000.9.5977.6769.1234.23
4100.9.6177.9169.3335.19
4200.9.6378.1469.5336.15
4300.9.6478.3769.7437.12
4400.9.6678.5969.9438.08
4500.9.6878.8170.1339.05
4600.9.6979.0270.3240.02
4700.9.7179.2370.5140.99
4800.9.7379.4370.6941.96
4900.9.7479.6370.8742.93
5000.9.7679.8371.0543.91
5100.9.7780.0371.2244.88
5200.9.7980.2271.4045.86
5300.9.8180.4071.5646.84
5400.9.8280.5971.7347.82
5500.9.8480.7771.8948.81
5600.9.8680.9472.0549.79
5700.9.8881.1272.2150.78
5800.9.8981.2972.3651.77
5900.9.9181.4672.5252.76
6000.9.9381.6372.6753.75

References

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