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Tetracarbon


Gas Phase Heat Capacity (Shomate Equation)

Go To: Top, References, Notes

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 34.8664084.02309
B 84.348181.746470
C -55.64804-0.340843
D 13.827620.022954
E -0.468144-8.928448
F 955.4373924.1703
G 245.0837300.4342
H 970.6880970.6880
ReferenceChase, 1998Chase, 1998
Comment Data last reviewed in December, 1969 Data last reviewed in December, 1969
Temperature
(K)
Cp
(J/mol*K)

(J/mol*K)
-(G° - H°298.15)/T
(J/mol*K)
H° - H°298.15
(kJ/mol)
298.50.15228.3228.3-0.01
300.50.33228.6228.30.09
400.57.66244.2230.45.52
500.62.98257.6234.511.56
600.67.13269.5239.418.07
700.70.43280.1244.524.96
800.73.08289.7249.532.14
900.75.21298.4254.539.56
1000.76.93306.5259.347.17
1100.78.33313.9263.954.93
1200.79.52320.7268.462.82
Temperature
(K)
Cp
(J/mol*K)

(J/mol*K)
-(G° - H°298.15)/T
(J/mol*K)
H° - H°298.15
(kJ/mol)
1200.79.47320.7268.462.82
1300.80.48327.1272.670.82
1400.81.31333.1276.778.91
1500.81.99338.7280.787.08
1600.82.55344.1284.595.31
1700.83.03349.1288.1103.6
1800.83.44353.8291.7111.9
1900.83.80358.4295.1120.3
2000.84.10362.7298.3128.7
2100.84.38366.8301.5137.1
2200.84.62370.7304.5145.5
2300.84.83374.5307.5154.0
2400.85.02378.1310.4162.5
2500.85.19381.6313.2171.0
2600.85.34384.9315.8179.5
2700.85.48388.1318.5188.1
2800.85.61391.2321.0196.6
2900.85.72394.2323.5205.2
3000.85.82397.2325.9213.8
3100.85.92400.0328.2222.4
3200.86.00402.7330.5231.0
3300.86.08405.3332.7239.6
3400.86.15407.9334.9248.2
3500.86.22410.4337.0256.8
3600.86.28412.8339.1265.4
3700.86.33415.2341.1274.1
3800.86.38417.5343.1282.7
3900.86.42419.8345.1291.3
4000.86.47421.9346.9300.0
4100.86.50424.1348.8308.6
4200.86.54426.2350.6317.3
4300.86.57428.2352.4325.9
4400.86.60430.2354.1334.6
4500.86.63432.1355.9343.3
4600.86.66434.0357.5351.9
4700.86.68435.9359.2360.6
4800.86.70437.7360.8369.3
4900.86.73439.5362.4377.9
5000.86.75441.3364.0386.6
5100.86.77443.0365.5395.3
5200.86.79444.7367.0404.0
5300.86.80446.3368.5412.6
5400.86.82448.0369.9421.3
5500.86.84449.5371.4430.0
5600.86.86451.1372.8438.7
5700.86.88452.6374.2447.4
5800.86.90454.2375.5456.1
5900.86.92455.6376.9464.7
6000.86.94457.1378.2473.4

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