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vanadium oxide


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) 3500. - 6000.
A 10.55670
B -1.625790
C 0.566023
D -0.045710
E -0.794800
F 25.55239
G 65.92679
H 30.50000
ReferenceChase, 1998
Comment Data last reviewed in December, 1973
Temperature
(K)
Cp
(cal/mol*K)

(cal/mol*K)
-(G° - H°298.15)/T
(cal/mol*K)
H° - H°298.15
(kcal/mol)
3500.9.7876.3168.1228.64
3600.9.8576.5868.3529.63
3700.9.9276.8568.5830.61
3800.9.9977.1268.8031.61
3900.10.0677.3869.0232.61
4000.10.1377.6469.2333.62
4100.10.2177.8969.4434.64
4200.10.2878.1369.6435.66
4300.10.3578.3869.8436.69
4400.10.4378.6270.0437.73
4500.10.5078.8570.2338.78
4600.10.5779.0870.4239.83
4700.10.6479.3170.6140.89
4800.10.7079.5470.7941.96
4900.10.7779.7670.9743.03
5000.10.8379.9771.1544.11
5100.10.8980.1971.3345.20
5200.10.9580.4071.5046.29
5300.11.0180.6171.6747.39
5400.11.0680.8271.8448.49
5500.11.1181.0272.0049.60
5600.11.1581.2272.1650.72
5700.11.1981.4272.3351.83
5800.11.2381.6172.4852.95
5900.11.2681.8172.6454.08
6000.11.2882.0072.7955.20

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