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 (cal/mol*K)
    H° = standard enthalpy (kcal/mol)
    S° = standard entropy (cal/mol*K)
    t = temperature (K) / 1000.

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Temperature (K) 298. to 600.600. to 6000.
A -2.55751076.12130
B 234.07602.287910
C -275.4331-0.535076
D 122.80500.041296
E -0.078044-4.502460
F -701.8050-730.4969
G 34.38301166.8280
H -694.0930-694.0930
ReferenceChase, 1998Chase, 1998
Comment Data last reviewed in December, 1965 Data last reviewed in December, 1965
Temperature
(K)
Cp
(cal/mol*K)

(cal/mol*K)
-(G° - H°298.15)/T
(cal/mol*K)
H° - H°298.15
(kcal/mol)
298.45.1196.5396.55-0.01
300.45.3296.8396.550.08
400.54.38111.298.455.10
500.60.66124.0102.310.87
600.65.04135.5106.917.16
Temperature
(K)
Cp
(cal/mol*K)

(cal/mol*K)
-(G° - H°298.15)/T
(cal/mol*K)
H° - H°298.15
(kcal/mol)
600.64.80135.5106.917.15
700.68.29145.7111.723.81
800.70.60155.0116.630.77
900.72.22163.4121.337.91
1000.73.41171.1125.945.20
1100.74.32178.2130.452.58
1200.75.04184.7134.660.05
1300.75.62190.7138.767.59
1400.76.09196.3142.675.17
1500.76.49201.6146.482.80
1600.76.82206.5150.090.47
1700.77.11211.2153.498.17
1800.77.36215.6156.8105.9
1900.77.57219.8160.0113.6
2000.77.76223.8163.1121.4
2100.77.93227.6166.0129.2
2200.78.07231.2168.9137.0
2300.78.20234.7171.7144.8
2400.78.32238.0174.4152.6
2500.78.42241.2177.0160.5
2600.78.51244.3179.5168.3
2700.78.59247.2182.0176.2
2800.78.66250.1184.4184.0
2900.78.73252.9186.7191.9
3000.78.78255.5188.9199.8
3100.78.83258.1191.1207.7
3200.78.88260.6193.3215.5
3300.78.92263.0195.3223.4
3400.78.95265.4197.4231.3
3500.78.98267.7199.3239.2
3600.79.00269.9201.3247.1
3700.79.02272.1203.2255.0
3800.79.04274.2205.0262.9
3900.79.06276.2206.8270.8
4000.79.07278.2208.6278.7
4100.79.09280.2210.3286.6
4200.79.10282.1212.0294.6
4300.79.11284.0213.6302.5
4400.79.11285.8215.2310.4
4500.79.12287.6216.8318.3
4600.79.13289.3218.4326.2
4700.79.14291.0219.9334.1
4800.79.15292.7221.4342.0
4900.79.16294.3222.9349.9
5000.79.17295.9224.3357.9
5100.79.18297.5225.7365.8
5200.79.19299.0227.1373.7
5300.79.20300.5228.5381.6
5400.79.22302.0229.9389.5
5500.79.24303.5231.2397.5
5600.79.26304.9232.5405.4
5700.79.29306.3233.8413.3
5800.79.31307.7235.0421.2
5900.79.35309.0236.3429.2
6000.79.38310.4237.5437.1

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