chromium


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. - 600.600. - 2130.
A 7.48973718.46508
B 71.504985.477986
C -91.675627.904329
D 46.04450-1.147848
E 0.1381571.265791
F -4.228643-2.676941
G 15.8091248.09341
H 0.0000000.000000
ReferenceChase, 1998Chase, 1998
Comment Data last reviewed in June, 1973 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)
298.23.4323.6123.62-0.00
300.23.4723.7623.620.04
400.25.2330.7624.562.48
500.26.6336.5526.405.08
600.27.7241.5128.517.80
Temperature
(K)
Cp
(J/mol*K)

(J/mol*K)
-(G° - H°298.15)/T
(J/mol*K)
H° - H°298.15
(kJ/mol)
600.27.8741.5328.517.81
700.28.3645.8630.6910.62
800.29.3049.7032.8313.50
900.30.5253.2234.9016.49
1000.31.9756.5136.9019.61
1100.33.5759.6338.8222.88
1200.35.3262.6240.6826.33
1300.37.1765.5242.4829.95
1400.39.1268.3544.2333.77
1500.41.1671.1245.9337.78
1600.43.2673.8447.5942.00
1700.45.4276.5349.2146.43
1800.47.6379.1950.8151.08
1900.49.8981.8252.3755.96
2000.52.1784.4453.9161.06
2100.54.4887.0455.4266.40

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