Pentaborane(9)


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) 1500. - 6000.
A 72.19319
B 3.856951
C -0.748996
D 0.050269
E -15.37570
F -39.74720
G 105.0550
H 17.50000
ReferenceChase, 1998
Comment Data last reviewed in March, 1965
Temperature
(K)
Cp
(cal/mol*K)

(cal/mol*K)
-(G° - H°298.15)/T
(cal/mol*K)
H° - H°298.15
(kcal/mol)
1500.69.63142.799.5164.85
1600.70.65147.3102.471.87
1700.71.51151.6105.178.98
1800.72.26155.7107.886.17
1900.72.90159.6110.493.43
2000.73.47163.4113.0100.7
2100.73.97167.0115.5108.1
2200.74.41170.4117.9115.5
2300.74.81173.7120.3123.0
2400.75.16176.9122.6130.5
2500.75.48180.0124.8138.0
2600.75.77183.0127.0145.6
2700.76.03185.8129.1153.2
2800.76.26188.6131.2160.8
2900.76.48191.3133.2168.4
3000.76.67193.9135.2176.1
3100.76.85196.4137.1183.8
3200.77.01198.8139.0191.5
3300.77.16201.2140.9199.2
3400.77.29203.5142.7206.9
3500.77.42205.8144.4214.6
3600.77.53207.9146.2222.4
3700.77.63210.1147.9230.1
3800.77.73212.1149.5237.9
3900.77.81214.2151.2245.7
4000.77.89216.1152.8253.5
4100.77.97218.0154.3261.3
4200.78.03219.9155.9269.1
4300.78.09221.8157.4276.9
4400.78.15223.6158.9284.7
4500.78.20225.3160.3292.5
4600.78.25227.0161.8300.3
4700.78.30228.7163.2308.1
4800.78.34230.4164.5316.0
4900.78.38232.0165.9323.8
5000.78.42233.6167.2331.7
5100.78.46235.1168.6339.5
5200.78.50236.6169.9347.3
5300.78.53238.1171.1355.2
5400.78.57239.6172.4363.1
5500.78.60241.1173.6370.9
5600.78.64242.5174.8378.8
5700.78.68243.9176.0386.6
5800.78.72245.2177.2394.5
5900.78.76246.6178.4402.4
6000.78.80247.9179.5410.3

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