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Liquid 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) 1685. - 3504.616
A 6.500010
B -2.864021×10-11
C 1.279461×10-11
D -1.662670×10-12
E -1.026381×10-12
F 9.646662
G 18.49230
H 11.58460
ReferenceChase, 1998
Comment Data last reviewed in March, 1967
Temperature
(K)
Cp
(cal/mol*K)

(cal/mol*K)
-(G° - H°298.15)/T
(cal/mol*K)
H° - H°298.15
(kcal/mol)
1685.6.5021.8816.539.01
1700.6.5021.9416.589.11
1800.6.5022.3116.899.76
1900.6.5022.6617.1810.41
2000.6.5023.0017.4711.06
2100.6.5023.3117.7411.71
2200.6.5023.6218.0012.36
2300.6.5023.9118.2513.01
2400.6.5024.1818.4913.66
2500.6.5024.4518.7214.31
2600.6.5024.7018.9514.96
2700.6.5024.9519.1715.61
2800.6.5025.1819.3816.26
2900.6.5025.4119.5816.91
3000.6.5025.6319.7817.56
3100.6.5025.8519.9718.21
3200.6.5026.0520.1618.86
3300.6.5026.2520.3419.51
3400.6.5026.4520.5220.16
3500.6.5026.6420.6920.81

References

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