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niobium pentachloride


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) 800. - 6000.
A 131.8940
B 0.990980
C -0.272647
D 0.023520
E -1.186221
F -746.6850
G 556.7280
H -703.3300
ReferenceChase, 1998
Comment Data last reviewed in December, 1974
Temperature
(K)
Cp
(J/mol*K)

(J/mol*K)
-(G° - H°298.15)/T
(J/mol*K)
H° - H°298.15
(kJ/mol)
800.130.7528.9449.063.92
900.131.1544.4458.877.01
1000.131.4558.2468.090.14
1100.131.7570.7476.8103.3
1200.131.9582.2485.1116.5
1300.132.1592.8493.0129.7
1400.132.2602.6500.5142.9
1500.132.3611.7507.6156.1
1600.132.4620.2514.4169.4
1700.132.5628.2520.8182.6
1800.132.6635.8527.0195.9
1900.132.6643.0532.9209.1
2000.132.7649.8538.6222.4
2100.132.7656.3544.1235.6
2200.132.8662.4549.3248.9
2300.132.8668.3554.4262.2
2400.132.8674.0559.2275.5
2500.132.8679.4563.9288.8
2600.132.9684.6568.5302.0
2700.132.9689.6572.9315.3
2800.132.9694.5577.1328.6
2900.132.9699.1581.2341.9
3000.132.9703.7585.3355.2
3100.132.9708.0589.1368.5
3200.132.9712.2592.9381.8
3300.132.9716.3596.6395.1
3400.132.9720.3600.2408.4
3500.132.9724.1603.7421.7
3600.132.9727.9607.1435.0
3700.132.9731.5610.4448.3
3800.132.9735.1613.6461.5
3900.132.9738.5616.8474.8
4000.132.9741.9619.9488.1
4100.132.9745.2622.9501.4
4200.132.9748.4625.8514.7
4300.132.9751.5628.7528.0
4400.132.9754.6631.5541.3
4500.132.9757.5634.3554.6
4600.132.9760.5637.0567.9
4700.132.9763.3639.7581.2
4800.132.9766.1642.3594.5
4900.132.9768.9644.8607.8
5000.132.9771.6647.3621.1
5100.132.9774.2649.8634.3
5200.132.9776.8652.2647.6
5300.132.9779.3654.6660.9
5400.133.0781.8656.9674.2
5500.133.0784.2659.2687.5
5600.133.0786.6661.5700.8
5700.133.0789.0663.7714.1
5800.133.0791.3665.9727.4
5900.133.0793.6668.0740.7
6000.133.1795.8670.1754.0

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