5. For a pure substancea. Derive the following expressionəsmлеTпкb. How does the molar entropy change with increasing volume?For a mixture of substances, n1, N2, N3...how that the presssure dependence of the chemical potentialvolume as followsс.ted to theӘРT,nj # iənT,P,nj # id. Pure phosphine is allowed to decompose according to the following reaction.COCI2 (g) = CO (g) + Cl2 (g)Assuming ideal gas behavior, and using the Maxwell relationship above, derive anexpression forӘРe. How does the chemical potential change with increasing pressure?Hint: n= ncoCI, + nco + ncl2 »dncoci= -dnco, dncoci, = -dnɑ,%3Df. Use your result in part d to derive an expression for µcoci,(P) with respect tosome reference pressure, Pº

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5. For a pure substance a. Derive the following expression пк T. b. How does the molar entropy change with increasing volume?

Chemistry

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ISBN:9781305957404

Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Chapter1: Chemical Foundations

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Question

5. For a pure substance
a. Derive the following expression
əsm
ле
T
пк
b. How does the molar entropy change with increasing volume?
For a mixture of substances, n1, N2, N3...
how that the presssure dependence of the chemical potential
volume as follows
с.
ted to the
ӘР
T,nj # i
ən
T,P,nj # i
d. Pure phosphine is allowed to decompose according to the following reaction.
COCI2 (g) = CO (g) + Cl2 (g)
Assuming ideal gas behavior, and using the Maxwell relationship above, derive an
expression for
ӘР
e. How does the chemical potential change with increasing pressure?
Hint: n= ncoCI, + nco + ncl2 »
dncoci
= -dnco, dncoci, = -dnɑ,
%3D
f. Use your result in part d to derive an expression for µcoci,(P) with respect to
some reference pressure, Pº

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