Cesium hydroxide

Formula: Cs₂H₂O₂
Molecular weight: 299.8256
CAS Registry Number: 12182-83-1
Information on this page:
Other data available:
- Gas phase thermochemistry data
- Gas phase ion energetics 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 (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 1200.	1200. to 6000.
A	12.28780	27.00120
B	29.39601	2.414730
C	-21.47560	-0.453352
D	6.207802	0.029699
E	0.042572	-2.810792
F	-169.0500	-178.5650
G	93.46479	110.5900
H	-164.4000	-164.4000
Reference	Chase, 1998	Chase, 1998
Comment	Data last reviewed in June, 1971	Data last reviewed in June, 1971

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.	19.78	86.21	86.22	-0.00
300.	19.81	86.34	86.22	0.04
400.	21.27	92.25	87.02	2.09
500.	22.56	97.13	88.56	4.29
600.	23.65	101.3	90.35	6.60
700.	24.56	105.1	92.19	9.01
800.	25.31	108.4	94.01	11.50
900.	25.93	111.4	95.78	14.07
1000.	26.46	114.2	97.48	16.69
1100.	26.94	116.7	99.12	19.36
1200.	27.39	119.1	100.7	22.07

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)
1200.	27.35	119.1	100.7	22.07
1300.	27.78	121.3	102.2	24.83
1400.	28.14	123.4	103.6	27.62
1500.	28.45	125.3	105.0	30.45
1600.	28.73	127.2	106.3	33.31
1700.	28.97	128.9	107.6	36.20
1800.	29.18	130.6	108.8	39.11
1900.	29.38	132.1	110.0	42.04
2000.	29.55	133.7	111.2	44.98
2100.	29.71	135.1	112.3	47.95
2200.	29.85	136.5	113.3	50.92
2300.	29.99	137.8	114.4	53.92
2400.	30.11	139.1	115.4	56.92
2500.	30.22	140.3	116.4	59.94
2600.	30.32	141.5	117.3	62.96
2700.	30.42	142.7	118.2	66.00
2800.	30.50	143.8	119.1	69.05
2900.	30.58	144.8	120.0	72.10
3000.	30.65	145.9	120.8	75.16
3100.	30.72	146.9	121.7	78.23
3200.	30.78	147.9	122.5	81.31
3300.	30.84	148.8	123.2	84.39
3400.	30.89	149.7	124.0	87.48
3500.	30.94	150.6	124.8	90.57
3600.	30.99	151.5	125.5	93.66
3700.	31.03	152.4	126.2	96.76
3800.	31.07	153.2	126.9	99.87
3900.	31.10	154.0	127.6	103.0
4000.	31.13	154.8	128.3	106.1
4100.	31.16	155.5	128.9	109.2
4200.	31.19	156.3	129.6	112.3
4300.	31.21	157.0	130.2	115.4
4400.	31.23	157.7	130.8	118.6
4500.	31.25	158.4	131.4	121.7
4600.	31.27	159.1	132.0	124.8
4700.	31.29	159.8	132.6	127.9
4800.	31.31	160.5	133.2	131.1
4900.	31.33	161.1	133.7	134.2
5000.	31.34	161.7	134.3	137.3
5100.	31.36	162.4	134.8	140.5
5200.	31.37	163.0	135.4	143.6
5300.	31.39	163.6	135.9	146.7
5400.	31.40	164.2	136.4	149.9
5500.	31.42	164.7	136.9	153.0
5600.	31.43	165.3	137.4	156.2
5700.	31.45	165.9	137.9	159.3
5800.	31.47	166.4	138.4	162.5
5900.	31.49	166.9	138.9	165.6
6000.	31.51	167.5	139.3	168.8

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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