magnesium sulphide


Gas phase thermochemistry data

Go To: Top, Condensed 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
Δfgas34.711kcal/molReviewChase, 1998Data last reviewed in September, 1977
Quantity Value Units Method Reference Comment
gas,1 bar53.893cal/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 (cal/mol*K)
    H° = standard enthalpy (kcal/mol)
    S° = standard entropy (cal/mol*K)
    t = temperature (K) / 1000.

View plot Requires a JavaScript / HTML 5 canvas capable browser.

View table.

Temperature (K) 298. to 800.800. to 2000.2000. to 6000.
A 12.2167347.570518.252773
B -33.44622-45.485420.285997
C 86.1393420.089320.003795
D -53.50598-3.143619-0.001079
E -0.018726-5.9333425.988719
F 31.836286.12662640.17113
G 75.18786100.626769.61783
H 34.7100934.7100934.71009
ReferenceChase, 1998Chase, 1998Chase, 1998
Comment Data last reviewed in September, 1977 Data last reviewed in September, 1977 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
Δfsolid-82.629kcal/molReviewChase, 1998Data last reviewed in September, 1977
Quantity Value Units Method Reference Comment
solid12.02cal/mol*KReviewChase, 1998Data 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 (cal/mol*K)
    H° = standard enthalpy (kcal/mol)
    S° = standard entropy (cal/mol*K)
    t = temperature (K) / 1000.

View plot Requires a JavaScript / HTML 5 canvas capable browser.

View table.

Temperature (K) 298. to 3000.
A 11.61570
B 0.880849
C 0.005112
D 0.003601
E -0.088246
F -86.43131
G 25.31900
H -82.63009
ReferenceChase, 1998
Comment 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

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