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Dioxosilane


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) 4500. - 6000.
A 61.55710
B 0.446596
C -0.090267
D 0.006247
E -3.664591
F -333.4418
G 289.4972
H -305.4324
ReferenceChase, 1998
Comment Data last reviewed in June, 1967
Temperature
(K)
Cp
(J/mol*K)

(J/mol*K)
-(G° - H°298.15)/T
(J/mol*K)
H° - H°298.15
(kJ/mol)
4500.62.13383.5327.4252.2
4600.62.14384.8328.6258.4
4700.62.14386.2329.9264.7
4800.62.15387.5331.0270.9
4900.62.16388.8332.2277.1
5000.62.17390.0333.3283.3
5100.62.17391.2334.5289.5
5200.62.18392.4335.6295.7
5300.62.19393.6336.7302.0
5400.62.19394.8337.7308.2
5500.62.20395.9338.8314.4
5600.62.21397.1339.8320.6
5700.62.21398.2340.8326.8
5800.62.22399.2341.8333.1
5900.62.23400.3342.8339.3
6000.62.23401.3343.8345.5

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