silicon carbide

Formula: CSi
Molecular weight: 40.0962
CAS Registry Number: 409-21-2
Information on this page:
Other data available:
Data at other public NIST sites:
- Gas Phase Kinetics Database
- X-ray Photoelectron Spectroscopy Database, version 5.0
Options:
- Switch to SI units

Solid Phase Heat Capacity (Shomate Equation)

C_p° = 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
C_p = heat capacity (cal/mol*K)
H° = standard enthalpy (kcal/mol)
S° = standard entropy (cal/mol*K)
t = temperature (K) / 1000.

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

Temperature (K)	298. - 1000.	1000. - 4000.	298. - 1100.	1100. - 4000.
A	4.913621	11.20990	4.899640	11.52540
B	15.43490	1.397220	15.14620	1.196021
C	-12.66450	-0.259419	-11.84040	-0.247991
D	4.053091	0.022233	3.543980	0.020636
E	-0.186866	-0.824301	-0.181637	-0.935070
F	-19.77460	-22.81720	-20.14660	-23.53380
G	4.758241	13.61740	4.854030	13.80550
H	-17.09990	-17.09990	-17.50000	-17.50000
Reference	Chase, 1998	Chase, 1998	Chase, 1998	Chase, 1998
Comment	α phase; Data last reviewed in March, 1966	α phase; Data last reviewed in March, 1966	β phase; Data last reviewed in March, 1966	β phase; Data last reviewed in March, 1966

Temperature (K)	C_p (cal/mol*K)	S° (cal/mol*K)	-(G° - H°_298.15)/T (cal/mol*K)	H° - H°_298.15 (kcal/mol)
298.	6.39	3.93	3.94	-0.00
300.	6.44	3.98	3.94	0.01
400.	8.15	6.09	4.22	0.75
500.	9.22	8.03	4.79	1.62
600.	9.97	9.78	5.48	2.58
700.	10.52	11.36	6.21	3.61
800.	10.94	12.79	6.94	4.68
900.	11.27	14.10	7.67	5.79
1000.	11.55	15.31	8.37	6.94

Temperature (K)	C_p (cal/mol*K)	S° (cal/mol*K)	-(G° - H°_298.15)/T (cal/mol*K)	H° - H°_298.15 (kcal/mol)
1000.	11.55	15.30	8.37	6.93
1100.	11.78	16.42	9.05	8.10
1200.	11.98	17.45	9.71	9.29
1300.	12.15	18.42	10.34	10.50
1400.	12.30	19.32	10.95	11.72
1500.	12.43	20.17	11.54	12.96
1600.	12.55	20.98	12.10	14.20
1700.	12.66	21.75	12.65	15.46
1800.	12.76	22.47	13.17	16.74
1900.	12.85	23.16	13.68	18.02
2000.	12.94	23.83	14.17	19.31
2100.	13.02	24.46	14.65	20.60
2200.	13.09	25.07	15.11	21.91
2300.	13.17	25.65	15.55	23.22
2400.	13.23	26.21	15.99	24.54
2500.	13.30	26.75	16.41	25.87
2600.	13.36	27.28	16.81	27.20
2700.	13.42	27.78	17.21	28.54
2800.	13.47	28.27	17.60	29.89
2900.	13.52	28.74	17.97	31.24
3000.	13.58	29.20	18.34	32.59
3100.	13.62	29.65	18.70	33.95
3200.	13.67	30.08	19.05	35.32
3300.	13.72	30.50	19.39	36.68
3400.	13.76	30.91	19.72	38.06
3500.	13.81	31.31	20.05	39.44
3600.	13.85	31.70	20.36	40.82
3700.	13.89	32.08	20.68	42.21
3800.	13.94	32.45	20.98	43.60
3900.	13.98	32.82	21.28	44.99
4000.	14.02	33.17	21.57	46.39

Temperature (K)	C_p (cal/mol*K)	S° (cal/mol*K)	-(G° - H°_298.15)/T (cal/mol*K)	H° - H°_298.15 (kcal/mol)
298.	6.41	3.96	3.97	-0.00
300.	6.46	4.01	3.97	0.01
400.	8.16	6.12	4.25	0.75
500.	9.23	8.06	4.82	1.62
600.	9.99	9.82	5.51	2.58
700.	10.55	11.40	6.24	3.61
800.	10.97	12.84	6.97	4.69
900.	11.30	14.15	7.70	5.80
1000.	11.57	15.35	8.41	6.95
1100.	11.80	16.47	9.09	8.12

Temperature (K)	C_p (cal/mol*K)	S° (cal/mol*K)	-(G° - H°_298.15)/T (cal/mol*K)	H° - H°_298.15 (kcal/mol)
1100.	11.80	16.47	9.09	8.12
1200.	11.99	17.50	9.75	9.30
1300.	12.15	18.47	10.38	10.51
1400.	12.29	19.37	10.99	11.73
1500.	12.42	20.22	11.58	12.97
1600.	12.52	21.03	12.14	14.22
1700.	12.62	21.79	12.69	15.47
1800.	12.71	22.52	13.21	16.74
1900.	12.79	23.20	13.72	18.02
2000.	12.86	23.86	14.21	19.30
2100.	12.92	24.49	14.69	20.59
2200.	12.98	25.09	15.15	21.88
2300.	13.04	25.67	15.59	23.18
2400.	13.09	26.23	16.02	24.49
2500.	13.14	26.76	16.44	25.80
2600.	13.18	27.28	16.85	27.12
2700.	13.22	27.78	17.25	28.44
2800.	13.26	28.26	17.63	29.76
2900.	13.30	28.73	18.00	31.09
3000.	13.33	29.18	18.37	32.42
3100.	13.37	29.61	18.73	33.76
3200.	13.40	30.04	19.07	35.10
3300.	13.43	30.45	19.41	36.44
3400.	13.46	30.85	19.74	37.78
3500.	13.48	31.24	20.06	39.13
3600.	13.51	31.62	20.38	40.48
3700.	13.53	31.99	20.69	41.83
3800.	13.56	32.36	20.99	43.18
3900.	13.58	32.71	21.29	44.54
4000.	13.60	33.05	21.58	45.90

References

Go To: Top, Solid Phase Heat Capacity (Shomate Equation), Notes

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, Solid Phase Heat Capacity (Shomate Equation), References

Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
The National Institute of Standards and Technology (NIST) uses its best efforts to deliver a high quality copy of the Database and to verify that the data contained therein have been selected on the basis of sound scientific judgment. However, NIST makes no warranties to that effect, and NIST shall not be liable for any damage that may result from errors or omissions in the Database.
Customer support for NIST Standard Reference Data products.