aluminium silicate


Solid 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. - 3000.
A 164.8776
B 36.97957
C -4.284081
D 0.693925
E -4.777793
F -2656.041
G 257.5365
H -2589.105
ReferenceChase, 1998
Comment sillimanite phase; Data last reviewed in September, 1967
Temperature
(K)
Cp
(J/mol*K)

(J/mol*K)
-(G° - H°298.15)/T
(J/mol*K)
H° - H°298.15
(kJ/mol)
298.121.795.6696.21-0.16
300.122.596.4896.210.08
400.149.2135.9101.313.83
500.163.3170.8111.829.51
600.172.4201.4124.246.32
700.179.2228.5137.263.92
800.184.6252.8150.282.11
900.189.3274.8162.8100.8
1000.193.5295.0175.0120.0
1100.197.3313.6186.8139.5
1200.201.0330.9198.1159.4
1300.204.4347.2208.9179.7
1400.207.7362.4219.4200.3
1500.210.9376.9229.4221.2
1600.214.1390.6239.0242.5
1700.217.1403.7248.3264.0
1800.220.1416.2257.3285.9
1900.223.1428.1266.0308.1
2000.226.1439.7274.4330.5
2100.229.0450.8282.5353.3
2200.231.9461.5290.4376.3
2300.234.8471.9298.1399.7
2400.237.7481.9305.5423.3
2500.240.6491.7312.8447.2
2600.243.6501.2319.9471.4
2700.246.5510.4326.7495.9
2800.249.5519.4333.5520.7
2900.252.4528.2340.0545.8
3000.255.5536.8346.4571.2

References

Go To: Top, Solid 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, Solid Phase Heat Capacity (Shomate Equation), References