potassium hydride

Formula: HK
Molecular weight: 40.1062
IUPAC Standard InChI: InChI=1S/K.H
IUPAC Standard InChIKey: NTTOTNSKUYCDAV-UHFFFAOYSA-N
CAS Registry Number: 7693-26-7
Chemical structure:
This structure is also available as a 2d Mol file
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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. - 1100.	1100. - 6000.
A	5.545290	8.903719
B	8.143719	0.244544
C	-7.106062	-0.004337
D	2.278521	0.000300
E	0.001272	-0.280750
F	27.44720	25.95880
G	51.91401	56.88069
H	29.40010	29.40010
Reference	Chase, 1998	Chase, 1998
Comment	Data last reviewed in March, 1963	Data last reviewed in March, 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.	7.42	47.32	47.33	-0.00
300.	7.42	47.37	47.33	0.01
400.	7.82	49.57	47.63	0.78
500.	8.13	51.35	48.20	1.57
600.	8.37	52.85	48.85	2.40
700.	8.55	54.15	49.52	3.25
800.	8.68	55.31	50.17	4.11
900.	8.78	56.33	50.80	4.98
1000.	8.86	57.26	51.40	5.86
1100.	8.94	58.11	51.97	6.75

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.	8.94	58.11	51.97	6.75
1200.	9.00	58.89	52.52	7.65
1300.	9.05	59.61	53.03	8.55
1400.	9.10	60.29	53.53	9.46
1500.	9.14	60.92	54.00	10.37
1600.	9.18	61.51	54.45	11.29
1700.	9.21	62.06	54.88	12.21
1800.	9.24	62.59	55.30	13.13
1900.	9.28	63.09	55.69	14.06
2000.	9.31	63.57	56.08	14.99
2100.	9.34	64.02	56.44	15.92
2200.	9.37	64.46	56.80	16.85
2300.	9.39	64.88	57.14	17.79
2400.	9.42	65.28	57.47	18.73
2500.	9.45	65.66	57.79	19.67
2600.	9.47	66.03	58.10	20.62
2700.	9.50	66.39	58.40	21.57
2800.	9.53	66.74	58.69	22.52
2900.	9.55	67.07	58.98	23.47
3000.	9.58	67.39	59.25	24.43
3100.	9.60	67.71	59.52	25.39
3200.	9.62	68.01	59.78	26.35
3300.	9.65	68.31	60.03	27.31
3400.	9.67	68.60	60.28	28.28
3500.	9.70	68.88	60.52	29.25
3600.	9.72	69.15	60.76	30.22
3700.	9.74	69.42	60.99	31.19
3800.	9.77	69.68	61.21	32.17
3900.	9.79	69.93	61.44	33.15
4000.	9.81	70.18	61.65	34.13
4100.	9.84	70.43	61.86	35.11
4200.	9.86	70.66	62.07	36.09
4300.	9.88	70.89	62.27	37.08
4400.	9.91	71.12	62.47	38.07
4500.	9.93	71.35	62.66	39.06
4600.	9.95	71.56	62.86	40.06
4700.	9.98	71.78	63.04	41.05
4800.	10.0	71.99	63.23	42.05
4900.	10.02	72.19	63.41	43.05
5000.	10.04	72.40	63.59	44.06
5100.	10.07	72.60	63.76	45.06
5200.	10.09	72.79	63.93	46.07
5300.	10.11	72.98	64.10	47.08
5400.	10.14	73.17	64.27	48.09
5500.	10.16	73.36	64.43	49.11
5600.	10.18	73.54	64.59	50.12
5700.	10.20	73.72	64.75	51.14
5800.	10.23	73.90	64.91	52.16
5900.	10.25	74.08	65.06	53.19
6000.	10.27	74.25	65.21	54.21

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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