Monopotassium monooxide

Formula: KO
Molecular weight: 55.0977
IUPAC Standard InChI: InChI=1S/K.O
IUPAC Standard InChIKey: RQPCXPDUSNVHSU-UHFFFAOYSA-N
CAS Registry Number: 12401-70-6
Chemical structure:
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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. - 6000.
A	37.31467
B	1.035014
C	-0.023270
D	0.001986
E	-0.147372
F	59.46259
G	282.0430
H	71.12800
Reference	Chase, 1998
Comment	Data last reviewed in December, 1967

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.	35.96	238.0	238.0	-0.01
300.	35.99	238.2	238.0	0.07
400.	36.80	248.7	239.4	3.71
500.	37.24	257.0	242.2	7.42
600.	37.52	263.8	245.2	11.15
700.	37.73	269.6	248.3	14.92
800.	37.90	274.7	251.3	18.70
900.	38.05	279.1	254.1	22.50
1000.	38.18	283.1	256.8	26.31
1100.	38.31	286.8	259.4	30.13
1200.	38.42	290.1	261.8	33.97
1300.	38.54	293.2	264.1	37.82
1400.	38.65	296.1	266.3	41.68
1500.	38.76	298.7	268.4	45.55
1600.	38.86	301.2	270.3	49.43
1700.	38.97	303.6	272.2	53.32
1800.	39.07	305.8	274.0	57.22
1900.	39.17	307.9	275.8	61.13
2000.	39.27	310.0	277.4	65.05
2100.	39.37	311.9	279.0	68.99
2200.	39.47	313.7	280.6	72.93
2300.	39.57	315.5	282.0	76.88
2400.	39.67	317.1	283.5	80.84
2500.	39.76	318.8	284.8	84.81
2600.	39.86	320.3	286.2	88.79
2700.	39.96	321.8	287.5	92.79
2800.	40.06	323.3	288.7	96.79
2900.	40.15	324.7	289.9	100.8
3000.	40.25	326.1	291.1	104.8
3100.	40.34	327.4	292.3	108.8
3200.	40.44	328.7	293.4	112.9
3300.	40.53	329.9	294.5	116.9
3400.	40.63	331.1	295.5	121.0
3500.	40.73	332.3	296.6	125.1
3600.	40.82	333.5	297.6	129.1
3700.	40.92	334.6	298.6	133.2
3800.	41.01	335.7	299.5	137.3
3900.	41.11	336.7	300.5	141.4
4000.	41.20	337.8	301.4	145.5
4100.	41.30	338.8	302.3	149.7
4200.	41.39	339.8	303.2	153.8
4300.	41.48	340.8	304.0	157.9
4400.	41.58	341.7	304.9	162.1
4500.	41.67	342.7	305.7	166.3
4600.	41.77	343.6	306.5	170.4
4700.	41.86	344.5	307.3	174.6
4800.	41.96	345.4	308.1	178.8
4900.	42.06	346.2	308.9	183.0
5000.	42.15	347.1	309.6	187.2
5100.	42.25	347.9	310.4	191.4
5200.	42.34	348.7	311.1	195.7
5300.	42.44	349.5	311.8	199.9
5400.	42.53	350.3	312.5	204.2
5500.	42.63	351.1	313.2	208.4
5600.	42.73	351.9	313.9	212.7
5700.	42.82	352.6	314.6	217.0
5800.	42.92	353.4	315.2	221.2
5900.	43.01	354.1	315.9	225.5
6000.	43.11	354.8	316.5	229.8

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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