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

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Temperature (K) 4500. - 6000.
A 85.57620
B -28.20000
C 3.986480
D -0.198946
E -147.0110
F -170.5960
G 41.22770
H 10.50000
ReferenceChase, 1998
Comment Data last reviewed in June, 1973
Temperature
(K)
Cp
(cal/mol*K)

(cal/mol*K)
-(G° - H°298.15)/T
(cal/mol*K)
H° - H°298.15
(kcal/mol)
4500.14.0180.9969.4751.84
4600.13.9081.3069.7353.23
4700.13.7981.6069.9854.61
4800.13.6881.8870.2255.99
4900.13.5882.1770.4657.35
5000.13.4982.4470.7058.71
5100.13.4082.7170.9360.05
5200.13.3282.9671.1661.39
5300.13.2483.2271.3862.71
5400.13.1783.4671.6164.03
5500.13.1183.7171.8265.35
5600.13.0583.9472.0466.66
5700.12.9984.1772.2567.96
5800.12.9384.4072.4669.25
5900.12.8884.6272.6670.55
6000.12.8384.8372.8671.83

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