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potassium sulfate


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

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Temperature (K) 3000. - 6000.
A 156.9912
B 0.548543
C -0.110834
D 0.007664
E -7.906756
F -1163.244
G 522.4101
H -1094.116
ReferenceChase, 1998
Comment Data last reviewed in June, 1978
Temperature
(K)
Cp
(J/mol*K)

(J/mol*K)
-(G° - H°298.15)/T
(J/mol*K)
H° - H°298.15
(kJ/mol)
3000.157.0696.5561.2406.1
3100.157.0701.7565.6421.8
3200.157.1706.7569.9437.5
3300.157.1711.5574.2453.2
3400.157.2716.2578.3468.9
3500.157.2720.8582.3484.7
3600.157.3725.2586.2500.4
3700.157.3729.5590.0516.1
3800.157.3733.7593.7531.9
3900.157.4737.8597.4547.6
4000.157.4741.8600.9563.3
4100.157.4745.7604.4579.1
4200.157.5749.4607.8594.8
4300.157.5753.2611.2610.6
4400.157.5756.8614.4626.3
4500.157.5760.3617.6642.1
4600.157.5763.8620.8657.8
4700.157.6767.2623.8673.6
4800.157.6770.5626.9689.3
4900.157.6773.7629.8705.1
5000.157.6776.9632.7720.8
5100.157.6780.0635.6736.6
5200.157.6783.1638.4752.4
5300.157.6786.1641.2768.1
5400.157.7789.0643.9783.9
5500.157.7791.9646.5799.7
5600.157.7794.8649.2815.4
5700.157.7797.6651.7831.2
5800.157.7800.3654.3847.0
5900.157.7803.0656.8862.7
6000.157.7805.7659.2878.5

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