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Dinitrogen pentoxide


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) 298. - 800.800. - 6000.
A 23.85152149.4818
B 337.98940.154807
C -353.4530-0.038263
D 134.84070.003074
E -0.042447-8.093070
F -8.123279-57.10198
G 288.9203490.8418
H 11.2970111.29701
ReferenceChase, 1998Chase, 1998
Comment Data last reviewed in December, 1964 Data last reviewed in December, 1964
Temperature
(K)
Cp
(J/mol*K)

(J/mol*K)
-(G° - H°298.15)/T
(J/mol*K)
H° - H°298.15
(kJ/mol)
298.96.27346.5346.5-0.01
300.96.61347.1346.60.18
400.110.9377.0350.510.59
500.121.2402.9358.522.22
600.128.4425.7367.834.72
700.133.4445.9377.547.83
800.137.0463.9387.261.36
Temperature
(K)
Cp
(J/mol*K)

(J/mol*K)
-(G° - H°298.15)/T
(J/mol*K)
H° - H°298.15
(kJ/mol)
800.136.9463.9387.261.35
900.139.6480.2396.775.18
1000.141.5495.0405.889.24
1100.142.9508.6414.5103.5
1200.144.0521.1422.9117.8
1300.144.8532.6430.9132.3
1400.145.5543.4438.5146.8
1500.146.0553.4445.9161.4
1600.146.5562.9452.9176.0
1700.146.8571.8459.6190.6
1800.147.2580.2466.1205.3
1900.147.4588.1472.3220.1
2000.147.6595.7478.3234.8
2100.147.8602.9484.1249.6
2200.148.0609.8489.6264.4
2300.148.1616.4495.0279.2
2400.148.3622.7500.2294.0
2500.148.4628.7505.2308.9
2600.148.5634.6510.1323.7
2700.148.6640.2514.8338.6
2800.148.7645.6519.4353.4
2900.148.7650.8523.8368.3
3000.148.8655.8528.1383.2
3100.148.8660.7532.3398.0
3200.148.9665.4536.4412.9
3300.148.9670.0540.4427.8
3400.149.0674.5544.3442.7
3500.149.0678.8548.0457.6
3600.149.1683.0551.7472.5
3700.149.1687.1555.3487.4
3800.149.1691.0558.9502.3
3900.149.2694.9562.3517.3
4000.149.2698.7565.7532.2
4100.149.2702.4568.9547.1
4200.149.2706.0572.2562.0
4300.149.2709.5575.3576.9
4400.149.3712.9578.4591.9
4500.149.3716.3581.4606.8
4600.149.3719.6584.4621.7
4700.149.3722.8587.3636.6
4800.149.3725.9590.2651.6
4900.149.3729.0593.0666.5
5000.149.4732.0595.7681.4
5100.149.4735.0598.4696.4
5200.149.4737.9601.1711.3
5300.149.4740.7603.7726.3
5400.149.4743.5606.2741.2
5500.149.4746.2608.8756.1
5600.149.4748.9611.2771.1
5700.149.4751.6613.7786.0
5800.149.5754.2616.1801.0
5900.149.5756.7618.4815.9
6000.149.5759.3620.8830.9

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