ditantalum pentaoxide


Liquid 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) 2058. to 5000.
A 242.6724
B -4.766455×10-8
C 1.226130×10-8
D -1.061924×10-9
E -4.051304×10-8
F -2106.535
G 357.8563
H -1957.175
ReferenceChase, 1998
Comment Data last reviewed in December, 1972
Temperature
(K)
Cp
(J/mol*K)

(J/mol*K)
-(G° - H°298.15)/T
(J/mol*K)
H° - H°298.15
(kJ/mol)
2058.242.7533.0362.9350.1
2100.242.7537.9366.4360.3
2200.242.7549.2374.4384.5
2300.242.7560.0382.2408.8
2400.242.7570.3389.9433.1
2500.242.7580.2397.3457.3
2600.242.7589.7404.5481.6
2700.242.7598.9411.5505.9
2800.242.7607.7418.4530.1
2900.242.7616.2425.1554.4
3000.242.7624.5431.6578.7
3100.242.7632.4437.9602.9
3200.242.7640.1444.1627.2
3300.242.7647.6450.2651.5
3400.242.7654.8456.1675.7
3500.242.7661.9461.9700.0
3600.242.7668.7467.5724.3
3700.242.7675.4473.0748.5
3800.242.7681.8478.5772.8
3900.242.7688.1483.8797.1
4000.242.7694.3488.9821.3
4100.242.7700.3494.0845.6
4200.242.7706.1499.0869.9
4300.242.7711.8503.9894.1
4400.242.7717.4508.7918.4
4500.242.7722.9513.4942.7
4600.242.7728.2518.0966.9
4700.242.7733.4522.5991.2
4800.242.7738.5527.01015.
4900.242.7743.5531.31040.
5000.242.7748.4535.61064.

References

Go To: Top, Liquid 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, Liquid Phase Heat Capacity (Shomate Equation), References