Difluorosilane


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 (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 5.90789024.52849
B 34.373400.692661
C -24.77170-0.134875
D 6.7404590.009070
E -0.104087-3.093421
F -192.4340-203.7210
G 60.0050982.12729
H -189.0000-189.0000
ReferenceChase, 1998Chase, 1998
Comment Data last reviewed in June, 1976 Data last reviewed in June, 1976
Temperature
(K)
Cp
(cal/mol*K)

(cal/mol*K)
-(G° - H°298.15)/T
(cal/mol*K)
H° - H°298.15
(kcal/mol)
298.12.9662.6462.65-0.00
300.13.0262.7362.650.02
400.15.4766.8363.191.45
500.17.3370.4964.293.10
600.18.7873.7865.614.91
700.19.9376.7766.996.84
800.20.8479.4968.388.88
900.21.5681.9969.7611.01
1000.22.1584.2971.1013.19
1100.22.6386.4372.4015.43
1200.23.0688.4173.6517.72
Temperature
(K)
Cp
(cal/mol*K)

(cal/mol*K)
-(G° - H°298.15)/T
(cal/mol*K)
H° - H°298.15
(kcal/mol)
1200.23.0388.4173.6517.72
1300.23.3990.2774.8620.04
1400.23.6892.0276.0222.39
1500.23.9293.6677.1424.77
1600.24.1295.2178.2227.18
1700.24.2996.6879.2729.60
1800.24.4498.0780.2732.03
1900.24.5699.3981.2434.48
2000.24.67100.782.1836.94
2100.24.77101.983.0939.42
2200.24.86103.083.9741.90
2300.24.93104.184.8244.39
2400.25.00105.285.6546.88
2500.25.06106.286.4549.39
2600.25.12107.287.2351.90
2700.25.17108.187.9954.41
2800.25.22109.188.7256.93
2900.25.26109.989.4459.45
3000.25.29110.890.1461.98
3100.25.33111.690.8264.51
3200.25.36112.491.4867.05
3300.25.39113.292.1369.59
3400.25.41114.092.7672.13
3500.25.44114.793.3874.67
3600.25.46115.493.9877.21
3700.25.48116.194.5779.76
3800.25.50116.895.1482.31
3900.25.51117.595.7184.86
4000.25.53118.196.2687.41
4100.25.54118.796.8089.96
4200.25.56119.497.3392.52
4300.25.57120.097.8595.08
4400.25.58120.598.3697.63
4500.25.59121.198.86100.2
4600.25.60121.799.35102.8
4700.25.61122.299.83105.3
4800.25.61122.8100.3107.9
4900.25.62123.3100.8110.4
5000.25.63123.8101.2113.0
5100.25.64124.3101.7115.6
5200.25.64124.8102.1118.1
5300.25.65125.3102.5120.7
5400.25.66125.8103.0123.3
5500.25.66126.3103.4125.8
5600.25.67126.7103.8128.4
5700.25.68127.2104.2131.0
5800.25.69127.6104.6133.5
5900.25.69128.1105.0136.1
6000.25.70128.5105.4138.7

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