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barium hydroxide


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
Deltafgas-149.75kcal/molReviewChase, 1998Data last reviewed in December, 1975
Quantity Value Units Method Reference Comment
gas,1 bar75.301cal/mol*KReviewChase, 1998Data last reviewed in December, 1975

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.

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Temperature (K) 2000. - 6000.
A 19.56914
B 3.426793
C -0.686078
D 0.047222
E -0.177017
F -156.3239
G 96.99594
H -149.7519
ReferenceChase, 1998
Comment Data last reviewed in December, 1975

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
Deltafliquid-223.26kcal/molReviewChase, 1998Data last reviewed in December, 1975
Quantity Value Units Method Reference Comment
liquid,1 bar29.481cal/mol*KReviewChase, 1998Data last reviewed in December, 1975
Quantity Value Units Method Reference Comment
Deltafsolid-226.17kcal/molReviewChase, 1998«alpha» phase; Data last reviewed in December, 1975

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 (cal/mol*K)
    H° = standard enthalpy (kcal/mol)
    S° = standard entropy (cal/mol*K)
    t = temperature (K) / 1000.

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Temperature (K) 681.15 - 2000.
A 33.70005
B -0.000001
C 0.000001
D -3.103299×10-7
E 1.385588×10-8
F -234.4367
G 67.15846
H -223.2608
ReferenceChase, 1998
Comment Data last reviewed in December, 1975

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.

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View table.

Temperature (K) 298. - 681.
A 11.38009
B 79.44885
C -124.8635
D 72.34704
E -0.142910
F -232.6133
G 19.79089
H -226.1699
ReferenceChase, 1998
Comment «alpha» phase; Data last reviewed in December, 1975

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