magnesium 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 (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. - 3105.
A 11.29540
B 1.357941
C -0.208572
D 0.024928
E -0.251901
F -147.9760
G 18.27480
H -143.7000
ReferenceChase, 1998
Comment Data last reviewed in December, 1974
Temperature
(K)
Cp
(cal/mol*K)

(cal/mol*K)
-(G° - H°298.15)/T
(cal/mol*K)
H° - H°298.15
(kcal/mol)
298.8.856.416.43-0.01
300.8.896.476.430.01
400.10.239.246.800.98
500.10.9211.607.532.04
600.11.3413.638.383.15
700.11.6415.419.264.30
800.11.8716.9710.135.48
900.12.0618.3810.976.67
1000.12.2219.6611.787.89
1100.12.3620.8312.559.12
1200.12.4921.9213.2810.36
1300.12.6122.9213.9911.61
1400.12.7323.8614.6612.88
1500.12.8424.7415.3014.16
1600.12.9425.5715.9215.45
1700.13.0426.3616.5116.75
1800.13.1327.1117.0818.06
1900.13.2227.8217.6219.37
2000.13.3128.5018.1520.70
2100.13.4029.1518.6622.04
2200.13.4929.7819.1523.38
2300.13.5730.3819.6324.73
2400.13.6530.9620.0926.09
2500.13.7431.5220.5327.46
2600.13.8232.0620.9728.84
2700.13.9032.5821.3930.23
2800.13.9833.0921.7931.62
2900.14.0633.5822.1933.02
3000.14.1434.0622.5834.43
3100.14.2234.5222.9635.85

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