Dilead

Formula: Pb₂
Molecular weight: 414.4
CAS Registry Number: 12596-92-8
Information on this page:
Other data available:
Data at other public NIST sites:
- Gas Phase Kinetics Database
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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 (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 6000.
A	8.934730
B	0.394538
C	-0.001759
D	0.000150
E	-0.020381
F	76.75041
G	77.82051
H	79.50010
Reference	Chase, 1998
Comment	Data last reviewed in September, 1963

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.	8.82	67.24	67.24	-0.00
300.	8.83	67.29	67.24	0.02
400.	8.96	69.86	67.59	0.91
500.	9.05	71.87	68.25	1.81
600.	9.11	73.52	68.99	2.72
700.	9.17	74.93	69.74	3.63
800.	9.22	76.16	70.47	4.55
900.	9.26	77.25	71.16	5.47
1000.	9.31	78.22	71.82	6.40
1100.	9.35	79.11	72.45	7.34
1200.	9.39	79.93	73.04	8.27
1300.	9.43	80.68	73.60	9.21
1400.	9.47	81.38	74.13	10.16
1500.	9.51	82.04	74.63	11.11
1600.	9.55	82.65	75.11	12.06
1700.	9.59	83.23	75.58	13.02
1800.	9.63	83.78	76.02	13.98
1900.	9.67	84.30	76.44	14.95
2000.	9.71	84.80	76.84	15.91
2100.	9.75	85.28	77.23	16.89
2200.	9.79	85.73	77.61	17.87
2300.	9.83	86.17	77.97	18.85
2400.	9.87	86.59	78.32	19.83
2500.	9.91	86.99	78.66	20.82
2600.	9.95	87.38	78.99	21.81
2700.	9.99	87.76	79.31	22.81
2800.	10.03	88.12	79.62	23.81
2900.	10.07	88.47	79.92	24.82
3000.	10.10	88.81	80.21	25.82
3100.	10.14	89.15	80.49	26.84
3200.	10.18	89.47	80.77	27.85
3300.	10.22	89.78	81.03	28.87
3400.	10.26	90.09	81.30	29.90
3500.	10.30	90.39	81.55	30.92
3600.	10.34	90.68	81.80	31.96
3700.	10.38	90.96	82.04	32.99
3800.	10.42	91.24	82.28	34.03
3900.	10.45	91.51	82.52	35.08
4000.	10.49	91.77	82.74	36.12
4100.	10.53	92.03	82.97	37.17
4200.	10.57	92.29	83.19	38.23
4300.	10.61	92.54	83.40	39.29
4400.	10.65	92.78	83.61	40.35
4500.	10.69	93.02	83.82	41.42
4600.	10.73	93.26	84.02	42.49
4700.	10.76	93.49	84.22	43.56
4800.	10.80	93.72	84.41	44.64
4900.	10.84	93.94	84.61	45.72
5000.	10.88	94.16	84.80	46.81
5100.	10.92	94.37	84.98	47.90
5200.	10.96	94.59	85.16	48.99
5300.	11.00	94.80	85.34	50.09
5400.	11.04	95.00	85.52	51.19
5500.	11.08	95.20	85.70	52.30
5600.	11.11	95.40	85.87	53.41
5700.	11.15	95.60	86.04	54.52
5800.	11.19	95.80	86.20	55.64
5900.	11.23	95.99	86.37	56.76
6000.	11.27	96.18	86.53	57.89

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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