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tungsten trioxide


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 82.72479
B 0.235081
C -0.047714
D 0.003313
E -3.492612
F -327.4557
G 371.5271
H -292.8804
ReferenceChase, 1998
Comment Data last reviewed in September, 1966
Temperature
(K)
Cp
(J/mol*K)

(J/mol*K)
-(G° - H°298.15)/T
(J/mol*K)
H° - H°298.15
(kJ/mol)
3000.82.70463.1391.3215.5
3100.82.73465.8393.7223.7
3200.82.76468.5396.0232.0
3300.82.78471.0398.2240.3
3400.82.80473.5400.4248.6
3500.82.82475.9402.5256.8
3600.82.84478.2404.6265.1
3700.82.85480.5406.6273.4
3800.82.87482.7408.6281.7
3900.82.88484.8410.5290.0
4000.82.90486.9412.4298.3
4100.82.91489.0414.2306.6
4200.82.92491.0416.0314.9
4300.82.93492.9417.8323.1
4400.82.94494.8419.5331.4
4500.82.95496.7421.2339.7
4600.82.95498.5422.9348.0
4700.82.96500.3424.5356.3
4800.82.97502.1426.1364.6
4900.82.98503.8427.7372.9
5000.82.98505.5429.2381.2
5100.82.99507.1430.7389.5
5200.82.99508.7432.2397.8
5300.83.00510.3433.7406.1
5400.83.00511.8435.1414.4
5500.83.01513.4436.5422.7
5600.83.02514.9437.9431.0
5700.83.02516.3439.3439.3
5800.83.03517.8440.6447.6
5900.83.03519.2441.9455.9
6000.83.04520.6443.2464.2

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