Tetraphosphorus decaoxide


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 -10.70062318.4915
B 979.37409.572616
C -1152.412-2.238758
D 513.81610.172783
E -0.326534-18.83829
F -2936.352-3056.399
G 143.8585698.0084
H -2904.085-2904.085
ReferenceChase, 1998Chase, 1998
Comment Data last reviewed in December, 1965 Data last reviewed in December, 1965
Temperature
(K)
Cp
(J/mol*K)

(J/mol*K)
-(G° - H°298.15)/T
(J/mol*K)
H° - H°298.15
(kJ/mol)
298.188.7403.9404.0-0.03
300.189.6405.1404.00.35
400.227.5465.2411.921.32
500.253.8519.0428.045.47
600.272.1567.0447.371.82
Temperature
(K)
Cp
(J/mol*K)

(J/mol*K)
-(G° - H°298.15)/T
(J/mol*K)
H° - H°298.15
(kJ/mol)
600.271.1566.8447.371.75
700.285.7609.8467.599.64
800.295.4648.6487.7128.7
900.302.2683.8507.6158.6
1000.307.2715.9526.8189.1
1100.311.0745.4545.4220.0
1200.314.0772.6563.2251.3
1300.316.4797.8580.3282.8
1400.318.4821.3596.7314.5
1500.320.0843.4612.4346.5
1600.321.4864.1627.5378.5
1700.322.6883.6642.0410.7
1800.323.7902.1655.9443.0
1900.324.6919.6669.3475.5
2000.325.4936.3682.3508.0
2100.326.0952.1694.8540.5
2200.326.7967.3706.8573.2
2300.327.2981.9718.4605.9
2400.327.7995.8729.7638.6
2500.328.11009.740.6671.4
2600.328.51022.751.2704.2
2700.328.81034.761.5737.1
2800.329.11046.771.4770.0
2900.329.41058.781.1802.9
3000.329.61069.790.5835.9
3100.329.81080.799.7868.8
3200.330.01090.808.6901.8
3300.330.21101.817.3934.8
3400.330.31110.825.8967.9
3500.330.41120.834.11001.
3600.330.51129.842.11034.
3700.330.61138.850.01067.
3800.330.71147.857.71100.
3900.330.81156.865.31133.
4000.330.81164.872.61166.
4100.330.91172.879.81199.
4200.330.91180.886.91232.
4300.331.01188.893.81266.
4400.331.01196.900.61299.
4500.331.01203.907.21332.
4600.331.11210.913.71365.
4700.331.11218.920.11398.
4800.331.11225.926.41431.
4900.331.21231.932.61464.
5000.331.21238.938.61497.
5100.331.31245.944.51530.
5200.331.31251.950.41564.
5300.331.41257.956.11597.
5400.331.51264.961.71630.
5500.331.51270.967.31663.
5600.331.61276.972.71696.
5700.331.71281.978.11729.
5800.331.91287.983.41762.
5900.332.01293.988.61796.
6000.332.11299.993.71829.

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