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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 (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. - 1200.1200. - 6000.
A 24.71861102.6272
B 143.81832.898095
C -103.6448-0.564317
D 28.202080.037951
E -0.435500-12.94287
F -805.1439-852.3687
G 251.0613343.6206
H -790.7760-790.7760
ReferenceChase, 1998Chase, 1998
Comment Data last reviewed in June, 1976 Data last reviewed in June, 1976
Temperature
(K)
Cp
(J/mol*K)

(J/mol*K)
-(G° - H°298.15)/T
(J/mol*K)
H° - H°298.15
(kJ/mol)
298.54.21262.1262.1-0.01
300.54.46262.5262.10.1
400.64.75279.6264.46.08
500.72.50294.9269.012.96
600.78.58308.7274.520.53
700.83.39321.2280.328.64
800.87.20332.6286.137.17
900.90.22343.0291.946.05
1000.92.66352.7297.555.20
1100.94.69361.6302.964.57
1200.96.48369.9308.174.13
Temperature
(K)
Cp
(J/mol*K)

(J/mol*K)
-(G° - H°298.15)/T
(J/mol*K)
H° - H°298.15
(kJ/mol)
1200.96.37369.9308.174.13
1300.97.87377.7313.283.84
1400.99.08385.0318.193.69
1500.100.1391.9322.8103.7
1600.100.9398.4327.3113.7
1700.101.6404.5331.6123.8
1800.102.2410.3335.9134.0
1900.102.8415.9339.9144.3
2000.103.2421.1343.9154.6
2100.103.6426.2347.7164.9
2200.104.0431.0351.3175.3
2300.104.3435.6354.9185.7
2400.104.6440.1358.4196.2
2500.104.9444.4361.7206.6
2600.105.1448.5365.0217.1
2700.105.3452.5368.1227.7
2800.105.5456.3371.2238.2
2900.105.7460.0374.2248.8
3000.105.8463.6377.1259.3
3100.106.0467.1380.0269.9
3200.106.1470.4382.8280.5
3300.106.2473.7385.5291.1
3400.106.3476.9388.1301.8
3500.106.4479.9390.7312.4
3600.106.5482.9393.2323.1
3700.106.6485.9395.7333.7
3800.106.7488.7398.1344.4
3900.106.7491.5400.4355.0
4000.106.8494.2402.8365.7
4100.106.9496.8405.0376.4
4200.106.9499.4407.2387.1
4300.107.0501.9409.4397.8
4400.107.0504.4411.5408.5
4500.107.1506.8413.6419.2
4600.107.1509.1415.7429.9
4700.107.1511.4417.7440.6
4800.107.2513.7419.7451.3
4900.107.2515.9421.6462.1
5000.107.2518.1423.5472.8
5100.107.3520.2425.4483.5
5200.107.3522.3427.2494.2
5300.107.3524.3429.0505.0
5400.107.4526.3430.8515.7
5500.107.4528.3432.6526.4
5600.107.4530.2434.3537.2
5700.107.4532.1436.0547.9
5800.107.5534.0437.7558.7
5900.107.5535.8439.3569.4
6000.107.5537.6441.0580.2

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