Home Symbol which looks like a small house Up Solid circle with an upward pointer in it

Silicon dicarbide


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

View plot Requires a JavaScript / HTML 5 canvas capable browser.

Temperature (K) 298. - 1300.1300. - 6000.
A 35.9864672.44136
B 44.70813-13.50729
C -30.229325.256778
D 7.516933-0.479813
E -0.108405-5.193055
F 602.2199579.8438
G 267.6183308.1089
H 615.0480615.0480
ReferenceChase, 1998Chase, 1998
Comment Data last reviewed in March, 1967 Data last reviewed in March, 1967
Temperature
(K)
Cp
(J/mol*K)

(J/mol*K)
-(G° - H°298.15)/T
(J/mol*K)
H° - H°298.15
(kJ/mol)
298.45.60236.7236.7-0.01
300.45.68237.0236.70.08
400.48.84250.6238.64.82
500.51.29261.8242.19.83
600.53.25271.3246.215.06
700.54.83279.6250.420.47
800.56.09287.0254.526.01
900.57.08293.7258.531.67
1000.57.87299.8262.337.42
1100.58.50305.3266.043.24
1200.59.02310.4269.549.12
1300.59.47315.2272.855.05
Temperature
(K)
Cp
(J/mol*K)

(J/mol*K)
-(G° - H°298.15)/T
(J/mol*K)
H° - H°298.15
(kJ/mol)
1300.59.64315.2272.855.06
1400.59.87319.6276.061.03
1500.60.08323.7279.167.03
1600.60.29327.6282.073.05
1700.60.52331.3284.879.09
1800.60.76334.8287.585.15
1900.61.02338.1290.091.24
2000.61.32341.2292.597.36
2100.61.64344.2294.9103.5
2200.61.99347.1297.2109.7
2300.62.36349.8299.4115.9
2400.62.77352.5301.6122.2
2500.63.20355.1303.7128.5
2600.63.66357.5305.7134.8
2700.64.14360.0307.7141.2
2800.64.64362.3309.6147.6
2900.65.16364.6311.4154.1
3000.65.70366.8313.2160.7
3100.66.25369.0315.0167.3
3200.66.82371.1316.7173.9
3300.67.39373.1318.4180.6
3400.67.98375.2320.0187.4
3500.68.57377.1321.6194.2
3600.69.16379.1323.2201.1
3700.69.75381.0324.8208.1
3800.70.33382.8326.3215.1
3900.70.92384.7327.7222.1
4000.71.49386.5329.2229.2
4100.72.05388.3330.6236.4
4200.72.60390.0332.0243.6
4300.73.13391.7333.4250.9
4400.73.64393.4334.7258.3
4500.74.13395.1336.0265.7
4600.74.59396.7337.3273.1
4700.75.03398.3338.6280.6
4800.75.43399.9339.9288.1
4900.75.81401.4341.1295.7
5000.76.14403.0342.3303.3
5100.76.44404.5343.5310.9
5200.76.69406.0344.7318.5
5300.76.90407.4345.9326.2
5400.77.06408.9347.0333.9
5500.77.17410.3348.2341.6
5600.77.22411.7349.3349.4
5700.77.22413.1350.4357.1
5800.77.17414.4351.5364.8
5900.77.04415.7352.6372.5
6000.76.86417.0353.6380.2

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