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calcium 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 (J/mol*K)
    H° = standard enthalpy (kJ/mol)
    S° = standard entropy (J/mol*K)
    t = temperature (K) / 1000.

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Temperature (K) 4500. - 6000.
A 358.0508
B -117.9888
C 16.67943
D -0.832390
E -615.0940
F -713.7737
G 172.4967
H 43.93200
ReferenceChase, 1998
Comment Data last reviewed in June, 1973
Temperature
(K)
Cp
(J/mol*K)

(J/mol*K)
-(G° - H°298.15)/T
(J/mol*K)
H° - H°298.15
(kJ/mol)
4500.58.63338.9290.7216.9
4600.58.15340.1291.7222.7
4700.57.69341.4292.8228.5
4800.57.25342.6293.8234.3
4900.56.83343.8294.8240.0
5000.56.44344.9295.8245.6
5100.56.07346.0296.8251.2
5200.55.73347.1297.7256.8
5300.55.41348.2298.7262.4
5400.55.12349.2299.6267.9
5500.54.84350.2300.5273.4
5600.54.59351.2301.4278.9
5700.54.34352.2302.3284.3
5800.54.12353.1303.2289.8
5900.53.90354.0304.0295.2
6000.53.70354.9304.9300.5

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