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

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Temperature (K) 4500. - 6000.
A 14.71250
B 0.106739
C -0.021574
D 0.001493
E -0.875858
F -79.69450
G 69.19149
H -73.00010
ReferenceChase, 1998
Comment Data last reviewed in June, 1967
Temperature
(K)
Cp
(cal/mol*K)

(cal/mol*K)
-(G° - H°298.15)/T
(cal/mol*K)
H° - H°298.15
(kcal/mol)
4500.14.8591.6578.2560.28
4600.14.8591.9878.5561.77
4700.14.8592.2978.8463.26
4800.14.8592.6179.1264.74
4900.14.8692.9179.4066.23
5000.14.8693.2179.6767.71
5100.14.8693.5179.9469.20
5200.14.8693.8080.2070.68
5300.14.8694.0880.4672.17
5400.14.8694.3680.7273.66
5500.14.8794.6380.9775.14
5600.14.8794.9081.2176.63
5700.14.8795.1681.4678.12
5800.14.8795.4281.7079.60
5900.14.8795.6781.9381.09
6000.14.8795.9282.1682.58

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