Iron sulfide


Gas phase thermochemistry data

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

Quantity Value Units Method Reference Comment
Δfgas370.77kJ/molReviewChase, 1998Data last reviewed in September, 1977
Quantity Value Units Method Reference Comment
gas,1 bar252.32J/mol*KReviewChase, 1998Data last reviewed in September, 1977

Gas Phase Heat Capacity (Shomate Equation)

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) 3800. to 6000.
A 37.81846
B -0.978851
C 0.856092
D -0.084874
E -0.330890
F 358.4194
G 296.4808
H 370.7673
ReferenceChase, 1998
Comment Data last reviewed in September, 1977

Condensed phase thermochemistry data

Go To: Top, Gas phase thermochemistry data, References, Notes

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

Quantity Value Units Method Reference Comment
Δfliquid-68.81kJ/molReviewChase, 1998Data last reviewed in September, 1977
Quantity Value Units Method Reference Comment
liquid,1 bar82.81J/mol*KReviewChase, 1998Data last reviewed in September, 1977
Quantity Value Units Method Reference Comment
Δfsolid-101.67kJ/molReviewChase, 1998troilite phase; Data last reviewed in September, 1977

Liquid Phase Heat Capacity (Shomate Equation)

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) 1463. to 3800.
A 62.55080
B 0.000002
C -6.720620×10-7
D 6.411921×10-8
E -4.303011×10-7
F -84.51170
G 166.2660
H -68.81140
ReferenceChase, 1998
Comment Data last reviewed in September, 1977

Solid Phase Heat Capacity (Shomate Equation)

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 411.411. to 598.598. to 1463.
A 9240.57072.3683095.82780
B -55016.80-0.060653-85.56150
C 121502.00.12049048.72030
D -93187.10-0.079265-0.000101
E -99.35930-0.0000180.000071
F -1634.010-122.1360-123.9460
G 22510.20149.9740205.1350
H -101.6710-101.6710-101.6710
ReferenceChase, 1998Chase, 1998Chase, 1998
Comment troilite phase; Data last reviewed in September, 1977 troilite phase; Data last reviewed in September, 1977 troilite phase; Data last reviewed in September, 1977

References

Go To: Top, Gas phase thermochemistry data, Condensed phase thermochemistry data, 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

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