Dirubidium


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 1600.1600. to 6000.
A 7.4119795.583311
B 7.920651-0.346557
C -10.328900.067709
D 3.161021-0.004487
E 0.0145793.545302
F 24.6476131.35650
G 71.9030177.69520
H 27.0770127.07701
ReferenceChase, 1998Chase, 1998
Comment Data last reviewed in December, 1983 Data last reviewed in December, 1983
Temperature
(K)
Cp
(cal/mol*K)

(cal/mol*K)
-(G° - H°298.15)/T
(cal/mol*K)
H° - H°298.15
(kcal/mol)
298.9.1064.7864.79-0.00
300.9.1164.8464.790.02
400.9.2267.4865.140.93
500.9.2469.5465.821.86
600.9.1771.2266.592.78
700.9.0172.6267.353.69
800.8.7873.8168.094.58
900.8.5074.8368.785.44
1000.8.1875.7169.436.28
1100.7.8576.4770.047.08
1200.7.5277.1470.607.84
1300.7.2177.7371.138.58
1400.6.9478.2571.629.29
1500.6.7378.7272.089.97
1600.6.6079.1572.5010.64
Temperature
(K)
Cp
(cal/mol*K)

(cal/mol*K)
-(G° - H°298.15)/T
(cal/mol*K)
H° - H°298.15
(kcal/mol)
1600.6.5779.1572.5010.64
1700.6.3979.5572.9111.29
1800.6.2579.9173.2911.92
1900.6.1280.2473.6412.54
2000.6.0180.5573.9813.14
2100.5.9280.8474.3013.74
2200.5.8381.1274.6014.33
2300.5.7681.3774.8914.91
2400.5.7081.6275.1715.48
2500.5.6481.8575.4316.05
2600.5.5982.0775.6816.61
2700.5.5482.2875.9217.16
2800.5.5082.4876.1517.71
2900.5.4682.6776.3718.26
3000.5.4382.8676.5918.81
3100.5.3983.0376.7919.35
3200.5.3783.2076.9919.89
3300.5.3483.3777.1820.42
3400.5.3283.5377.3720.95
3500.5.3083.6877.5421.48
3600.5.2883.8377.7222.01
3700.5.2683.9877.8822.54
3800.5.2484.1278.0523.07
3900.5.2384.2578.2023.59
4000.5.2184.3878.3624.11
4100.5.2084.5178.5124.63
4200.5.1984.6478.6525.15
4300.5.1884.7678.7925.67
4400.5.1784.8878.9326.19
4500.5.1685.0079.0626.70
4600.5.1585.1179.1927.22
4700.5.1485.2279.3227.73
4800.5.1485.3379.4428.25
4900.5.1385.4379.5628.76
5000.5.1285.5479.6829.28
5100.5.1285.6479.8029.79
5200.5.1185.7479.9130.30
5300.5.1185.8380.0230.81
5400.5.1085.9380.1331.32
5500.5.1086.0280.2431.83
5600.5.0986.1280.3432.34
5700.5.0986.2180.4432.85
5800.5.0886.2980.5433.36
5900.5.0886.3880.6433.86
6000.5.0786.4780.7434.37

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