Phosphorus dioxide


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. to 600.600. to 6000.
A 11.2654656.69278
B 135.78801.031604
C -159.4602-0.242217
D 70.274460.018741
E 0.175039-2.283770
F -322.0613-338.3555
G 234.2843311.3126
H -314.5243-314.5243
ReferenceChase, 1998Chase, 1998
Comment Data last reviewed in September, 1962 Data last reviewed in September, 1962
Temperature
(K)
Cp
(J/mol*K)

(J/mol*K)
-(G° - H°298.15)/T
(J/mol*K)
H° - H°298.15
(kJ/mol)
298.41.40253.7253.7-0.01
300.41.49253.9253.70.08
400.45.66266.5255.44.44
500.48.78277.0258.79.17
600.51.00286.1262.514.17
Temperature
(K)
Cp
(J/mol*K)

(J/mol*K)
-(G° - H°298.15)/T
(J/mol*K)
H° - H°298.15
(kJ/mol)
600.50.88286.1262.514.16
700.52.64294.1266.519.34
800.53.80301.2270.424.67
900.54.62307.6274.130.09
1000.55.22313.4277.835.59
1100.55.67318.7281.341.13
1200.56.03323.5284.646.72
1300.56.31328.0287.852.33
1400.56.55332.2290.857.98
1500.56.74336.1293.763.64
1600.56.91339.8296.469.33
1700.57.05343.2299.175.02
1800.57.17346.5301.680.73
1900.57.27349.6304.186.46
2000.57.37352.5306.492.19
2100.57.45355.3308.797.93
2200.57.52358.0310.9103.7
2300.57.58360.6313.0109.4
2400.57.64363.0315.0115.2
2500.57.69365.4317.0121.0
2600.57.73367.6318.9126.7
2700.57.77369.8320.7132.5
2800.57.80371.9322.5138.3
2900.57.83373.9324.3144.1
3000.57.86375.9325.9149.9
3100.57.88377.8327.6155.6
3200.57.90379.6329.2161.4
3300.57.92381.4330.7167.2
3400.57.94383.1332.3173.0
3500.57.95384.8333.7178.8
3600.57.97386.5335.2184.6
3700.57.98388.0336.6190.4
3800.57.99389.6338.0196.2
3900.57.99391.1339.3202.0
4000.58.00392.6340.6207.8
4100.58.01394.0341.9213.6
4200.58.01395.4343.2219.4
4300.58.02396.8344.4225.2
4400.58.02398.1345.6231.0
4500.58.03399.4346.8236.8
4600.58.03400.7347.9242.6
4700.58.03401.9349.1248.4
4800.58.04403.1350.2254.2
4900.58.04404.3351.3260.0
5000.58.05405.5352.3265.8
5100.58.05406.7353.4271.6
5200.58.06407.8354.4277.4
5300.58.07408.9355.5283.2
5400.58.07410.0356.5289.0
5500.58.08411.0357.4294.9
5600.58.09412.1358.4300.7
5700.58.10413.1359.4306.5
5800.58.12414.1360.3312.3
5900.58.13415.1361.2318.1
6000.58.15416.1362.1323.9

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