Beryllium carbide

Formula: C₂Be
Molecular weight: 33.0336
CAS Registry Number: 12070-28-9
Information on this page:
Other data available:
- Gas phase thermochemistry data
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Gas 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 (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. to 1200.	1200. to 6000.
A	29.62536	60.05128
B	43.72364	1.233586
C	-21.57952	-0.241476
D	3.421756	0.016302
E	0.041136	-6.145585
F	554.3884	532.7864
G	242.6226	272.5110
H	564.8400	564.8400
Reference	Chase, 1998	Chase, 1998
Comment	Data last reviewed in December, 1963	Data last reviewed in December, 1963

Temperature (K)	C_p (J/mol*K)	S° (J/mol*K)	-(G° - H°_298.15)/T (J/mol*K)	H° - H°_298.15 (kJ/mol)
298.	41.29	218.6	218.6	-0.00
300.	41.35	218.9	218.6	0.08
400.	44.14	231.2	220.3	4.36
500.	46.68	241.3	223.5	8.90
600.	48.94	250.0	227.2	13.68
700.	50.92	257.7	231.0	18.68
800.	52.61	264.6	234.8	23.86
900.	54.04	270.9	238.5	29.19
1000.	55.23	276.7	242.0	34.66
1100.	56.20	282.0	245.4	40.23
1200.	56.96	286.9	248.7	45.89

Temperature (K)	C_p (J/mol*K)	S° (J/mol*K)	-(G° - H°_298.15)/T (J/mol*K)	H° - H°_298.15 (kJ/mol)
1200.	56.94	286.9	248.7	45.89
1300.	57.65	291.5	251.8	51.62
1400.	58.21	295.8	254.8	57.41
1500.	58.68	299.8	257.7	63.26
1600.	59.07	303.6	260.4	69.15
1700.	59.40	307.2	263.1	75.07
1800.	59.69	310.6	265.6	81.02
1900.	59.93	313.9	268.1	87.01
2000.	60.15	316.9	270.4	93.01
2100.	60.33	319.9	272.7	99.03
2200.	60.50	322.7	274.9	105.1
2300.	60.65	325.4	277.1	111.1
2400.	60.78	328.0	279.1	117.2
2500.	60.90	330.4	281.1	123.3
2600.	61.00	332.8	283.1	129.4
2700.	61.10	335.1	285.0	135.5
2800.	61.19	337.4	286.8	141.6
2900.	61.26	339.5	288.6	147.7
3000.	61.34	341.6	290.3	153.9
3100.	61.40	343.6	292.0	160.0
3200.	61.46	345.5	293.6	166.1
3300.	61.51	347.4	295.2	172.3
3400.	61.56	349.3	296.8	178.4
3500.	61.61	351.1	298.3	184.6
3600.	61.65	352.8	299.8	190.8
3700.	61.69	354.5	301.3	196.9
3800.	61.72	356.1	302.7	203.1
3900.	61.75	357.7	304.1	209.3
4000.	61.78	359.3	305.4	215.4
4100.	61.81	360.8	306.8	221.6
4200.	61.83	362.3	308.1	227.8
4300.	61.85	363.8	309.4	234.0
4400.	61.88	365.2	310.6	240.2
4500.	61.89	366.6	311.8	246.4
4600.	61.91	367.9	313.0	252.6
4700.	61.93	369.3	314.2	258.8
4800.	61.94	370.6	315.4	264.9
4900.	61.96	371.9	316.5	271.1
5000.	61.97	373.1	317.6	277.3
5100.	61.99	374.3	318.7	283.5
5200.	62.00	375.5	319.8	289.7
5300.	62.01	376.7	320.9	295.9
5400.	62.03	377.9	321.9	302.1
5500.	62.04	379.0	323.0	308.3
5600.	62.05	380.1	324.0	314.5
5700.	62.07	381.2	325.0	320.8
5800.	62.08	382.3	325.9	327.0
5900.	62.10	383.4	326.9	333.2
6000.	62.11	384.4	327.9	339.4

References

Go To: Top, Gas 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, Gas Phase Heat Capacity (Shomate Equation), References

Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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