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calcium oxide


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. - 3200.
A 49.95403
B 4.887916
C -0.352056
D 0.046187
E -0.825097
F -652.9718
G 92.56096
H -635.0894
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)
298.42.0938.1738.22-0.01
300.42.2238.4538.220.07
400.46.7051.2939.934.55
500.49.0261.9943.309.34
600.50.4871.0647.1914.32
700.51.5478.9351.1819.42
800.52.3785.8655.0924.62
900.53.0892.0758.8629.89
1000.53.7197.7062.4735.23
1100.54.28102.865.9140.64
1200.54.82107.669.1946.09
1300.55.33112.072.3151.60
1400.55.81116.175.2957.16
1500.56.28120.078.1562.76
1600.56.74123.680.8868.41
1700.57.19127.183.4974.11
1800.57.63130.486.0179.85
1900.58.06133.588.4385.63
2000.58.48136.590.7591.46
2100.58.91139.393.0097.33
2200.59.32142.195.17103.2
2300.59.74144.797.27109.2
2400.60.15147.399.30115.2
2500.60.56149.8101.3121.2
2600.60.97152.1103.2127.3
2700.61.38154.5105.0133.4
2800.61.79156.7106.8139.6
2900.62.20158.9108.6145.8
3000.62.60161.0110.3152.0
3100.63.01163.0112.0158.3
3200.63.42165.0113.6164.6

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

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