magnesium hydroxide


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

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Temperature (K) 298. - 1000.
A 20.29240
B 17.79160
C -16.47420
D 6.365302
E -0.519815
F -229.4560
G 32.10490
H -221.0000
ReferenceChase, 1998
Comment Data last reviewed in December, 1975
Temperature
(K)
Cp
(cal/mol*K)

(cal/mol*K)
-(G° - H°298.15)/T
(cal/mol*K)
H° - H°298.15
(kcal/mol)
298.18.4515.0915.12-0.01
300.18.5415.2115.120.03
400.21.9321.0715.892.07
500.23.7926.1817.454.37
600.24.9730.6319.286.81
700.25.8034.5421.199.35
800.26.4338.0323.0811.96
900.26.9641.1724.9214.63
1000.27.4644.0426.6917.35

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

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