magnesium iodide


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) 2000. - 6000.
A 14.85560
B 0.041313
C -0.011201
D 0.000956
E -0.055566
F -42.91730
G 93.53320
H -38.30000
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)
2000.14.89103.991.3125.18
2100.14.89104.691.9326.67
2200.14.89105.392.5228.16
2300.14.89106.093.0929.65
2400.14.89106.693.6431.13
2500.14.89107.294.1732.62
2600.14.90107.894.6934.11
2700.14.90108.495.1835.60
2800.14.90108.995.6637.09
2900.14.90109.496.1338.58
3000.14.90109.996.5840.07
3100.14.90110.497.0241.56
3200.14.90110.997.4543.05
3300.14.90111.497.8644.54
3400.14.90111.898.2646.03
3500.14.90112.298.6647.52
3600.14.90112.799.0449.01
3700.14.90113.199.4150.50
3800.14.90113.599.7851.99
3900.14.90113.8100.153.48
4000.14.90114.2100.554.97
4100.14.90114.6100.856.46
4200.14.90115.0101.257.95
4300.14.90115.3101.559.44
4400.14.90115.6101.860.93
4500.14.90116.0102.162.42
4600.14.90116.3102.463.91
4700.14.90116.6102.765.40
4800.14.90116.9103.066.89
4900.14.90117.2103.368.38
5000.14.90117.5103.669.87
5100.14.90117.8103.971.36
5200.14.90118.1104.172.85
5300.14.90118.4104.474.34
5400.14.90118.7104.775.83
5500.14.90119.0104.977.32
5600.14.90119.2105.278.81
5700.14.90119.5105.480.30
5800.14.90119.8105.781.79
5900.14.90120.0105.983.28
6000.14.91120.3106.184.77

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