Potassium hydroxide


Gas Phase Heat Capacity (Shomate Equation)

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Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.

Cp° = 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
    Cp = 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 50.94857112.9730
B 124.139710.10315
C -90.90200-1.896763
D 26.306270.124252
E 0.075174-11.89520
F -674.5026-714.5017
G 356.8663429.2366
H -654.7960-654.7960
ReferenceChase, 1998Chase, 1998
Comment Data last reviewed in December, 1970 Data last reviewed in December, 1970
Temperature
(K)
Cp
(J/mol*K)

(J/mol*K)
-(G° - H°298.15)/T
(J/mol*K)
H° - H°298.15
(kJ/mol)
298.81.41328.0328.0-0.01
300.81.55328.5328.00.15
400.88.21352.9331.38.65
500.93.88373.2337.717.76
600.98.60390.8345.127.39
700.102.5406.3352.837.45
800.105.7420.2360.347.86
900.108.3432.8367.758.57
1000.110.6444.3374.869.51
1100.112.6454.9381.680.67
1200.114.5464.8388.192.03
Temperature
(K)
Cp
(J/mol*K)

(J/mol*K)
-(G° - H°298.15)/T
(J/mol*K)
H° - H°298.15
(kJ/mol)
1200.114.3464.8388.192.02
1300.116.1474.0394.4103.5
1400.117.7482.7400.4115.2
1500.119.0490.8406.1127.1
1600.120.1498.6411.7139.0
1700.121.2505.9417.0151.1
1800.122.1512.8422.1163.3
1900.122.9519.5427.1175.5
2000.123.6525.8431.9187.8
2100.124.3531.8436.5200.2
2200.124.9537.6440.9212.7
2300.125.4543.2445.3225.2
2400.125.9548.5449.5237.8
2500.126.4553.7453.5250.4
2600.126.8558.6457.5263.1
2700.127.2563.4461.3275.8
2800.127.6568.1465.0288.5
2900.127.9572.6468.7301.3
3000.128.2576.9472.2314.1
3100.128.5581.1475.7326.9
3200.128.8585.2479.0339.8
3300.129.0589.2482.3352.7
3400.129.3593.0485.5365.6
3500.129.5596.8488.6378.5
3600.129.6600.4491.7391.5
3700.129.8604.0494.7404.5
3800.130.0607.4497.6417.5
3900.130.1610.8500.4430.5
4000.130.2614.1503.2443.5
4100.130.4617.3506.0456.5
4200.130.5620.5508.7469.5
4300.130.6623.5511.3482.6
4400.130.7626.5513.9495.7
4500.130.8629.5516.4508.7
4600.130.8632.4518.9521.8
4700.130.9635.2521.4534.9
4800.131.0637.9523.8548.0
4900.131.1640.6526.1561.1
5000.131.1643.3528.4574.2
5100.131.2645.9530.7587.3
5200.131.3648.4533.0600.4
5300.131.3650.9535.2613.6
5400.131.4653.4537.3626.7
5500.131.4655.8539.5639.9
5600.131.5658.2541.6653.0
5700.131.6660.5543.6666.2
5800.131.7662.8545.7679.3
5900.131.7665.0547.7692.5
6000.131.8667.2549.6705.7

References

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

Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.

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