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calcium sulphide


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. - 1400.1400. - 3000.3000. - 6000.
A 33.08887-247.8309254.7052
B 15.89464258.9883-86.85356
C -21.61998-74.2354613.05132
D 10.846356.965901-0.689578
E -0.123820106.5113-287.7881
F 112.7768395.8616-317.4526
G 268.0601104.5720244.2067
H 123.5949123.5949123.5949
ReferenceChase, 1998Chase, 1998Chase, 1998
Comment Data last reviewed in September, 1977 Data last reviewed in September, 1977 Data last reviewed in September, 1977
Temperature
(K)
Cp
(J/mol*K)

(J/mol*K)
-(G° - H°298.15)/T
(J/mol*K)
H° - H°298.15
(kJ/mol)
298.34.80232.6232.6-0.01
300.34.83232.8232.60.06
400.35.91243.0234.03.61
500.36.49251.1236.67.23
600.36.84257.8239.610.90
700.37.09263.5242.614.59
800.37.33268.4245.518.31
900.37.64272.8248.322.06
1000.38.09276.8251.025.85
1100.38.75280.5253.529.69
1200.39.69283.9255.933.61
1300.40.97287.1258.237.64
1400.42.67290.2260.341.81
Temperature
(K)
Cp
(J/mol*K)

(J/mol*K)
-(G° - H°298.15)/T
(J/mol*K)
H° - H°298.15
(kJ/mol)
1400.42.71290.2260.341.82
1500.44.47293.2262.446.18
1600.46.65296.2264.550.73
1700.48.99299.1266.455.51
1800.51.32301.9268.360.53
1900.53.54304.8270.165.77
2000.55.56307.6271.971.23
2100.57.33310.3273.776.87
2200.58.82313.0275.482.68
2300.60.03315.7277.188.63
2400.60.93318.2278.894.68
2500.61.55320.7280.4100.8
2600.61.90323.2282.0107.0
2700.61.98325.5283.6113.2
2800.61.83327.7285.1119.4
2900.61.47329.9286.6125.5
3000.60.93332.0288.1131.7
Temperature
(K)
Cp
(J/mol*K)

(J/mol*K)
-(G° - H°298.15)/T
(J/mol*K)
H° - H°298.15
(kJ/mol)
3000.61.01332.0288.1131.7
3100.60.39334.0289.5137.7
3200.59.72335.9291.0143.7
3300.59.01337.7292.4149.7
3400.58.28339.5293.7155.5
3500.57.54341.1295.0161.3
3600.56.80342.7296.3167.0
3700.56.07344.3297.6172.7
3800.55.35345.8298.9178.3
3900.54.66347.2300.1183.8
4000.53.99348.6301.3189.2
4100.53.35349.9302.5194.6
4200.52.74351.2303.6199.9
4300.52.16352.4304.7205.1
4400.51.62353.6305.8210.3
4500.51.10354.8306.9215.4
4600.50.62355.9307.9220.5
4700.50.18357.0309.0225.6
4800.49.76358.0310.0230.6
4900.49.37359.0311.0235.5
5000.49.01360.0312.0240.4
5100.48.68361.0312.9245.3
5200.48.37361.9313.8250.2
5300.48.09362.9314.8255.0
5400.47.82363.8315.7259.8
5500.47.57364.6316.5264.5
5600.47.34365.5317.4269.3
5700.47.11366.3318.3274.0
5800.46.90367.1319.1278.7
5900.46.69367.9319.9283.4
6000.46.49368.7320.7288.1

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