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Dicarbon


Gas Phase Heat Capacity (Shomate Equation)

Go To: Top, References, Notes

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. - 700.700. - 6000.
A 29.615017.290651
B -83.175601.301581
C 115.9410-0.203961
D -55.640390.015689
E -0.2964380.194730
F 193.1830198.7520
G 101.963057.45791
H 200.2240200.2240
ReferenceChase, 1998Chase, 1998
Comment Data last reviewed in December, 1969 Data last reviewed in December, 1969
Temperature
(K)
Cp
(cal/mol*K)

(cal/mol*K)
-(G° - H°298.15)/T
(cal/mol*K)
H° - H°298.15
(kcal/mol)
298.10.3147.6547.65-0.00
300.10.3047.7247.650.02
400.9.4850.5748.051.01
500.8.8752.6148.771.92
600.8.6154.2049.552.80
700.8.5155.5250.313.65
Temperature
(K)
Cp
(cal/mol*K)

(cal/mol*K)
-(G° - H°298.15)/T
(cal/mol*K)
H° - H°298.15
(kcal/mol)
700.8.5055.5250.313.65
800.8.5156.6651.034.50
900.8.5557.6651.715.35
1000.8.6058.5752.356.21
1100.8.6659.3952.967.07
1200.8.7260.1453.537.94
1300.8.7960.8454.068.82
1400.8.8661.5054.579.70
1500.8.9262.1155.0510.59
1600.8.9962.6955.5111.48
1700.9.0663.2455.9512.39
1800.9.1263.7656.3713.30
1900.9.1964.2556.7714.21
2000.9.2564.7257.1615.13
2100.9.3165.1857.5316.06
2200.9.3765.6157.8917.00
2300.9.4366.0358.2317.94
2400.9.4966.4358.5618.88
2500.9.5566.8258.8919.84
2600.9.6067.2059.2020.79
2700.9.6567.5659.5021.76
2800.9.7167.9159.8022.72
2900.9.7668.2560.0823.70
3000.9.8068.5860.3624.67
3100.9.8568.9160.6325.66
3200.9.9069.2260.8926.64
3300.9.9569.5361.1527.64
3400.9.9969.8261.4028.63
3500.10.0470.1161.6529.64
3600.10.0870.4061.8930.64
3700.10.1270.6762.1231.65
3800.10.1770.9462.3532.67
3900.10.2171.2162.5733.68
4000.10.2571.4762.7934.71
4100.10.2971.7263.0135.73
4200.10.3371.9763.2236.77
4300.10.3772.2163.4237.80
4400.10.4272.4563.6338.84
4500.10.4672.6963.8239.88
4600.10.5072.9264.0240.93
4700.10.5473.1464.2141.98
4800.10.5873.3764.4043.04
4900.10.6373.5864.5844.10
5000.10.6773.8064.7745.17
5100.10.7174.0164.9546.23
5200.10.7674.2265.1247.31
5300.10.8074.4365.3048.39
5400.10.8574.6365.4749.47
5500.10.9074.8365.6450.56
5600.10.9475.0265.8051.65
5700.10.9975.2265.9652.74
5800.11.0575.4166.1353.85
5900.11.1075.6066.2854.95
6000.11.1575.7966.4456.07

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