In the formula for entropy change of a system: ∆S = CV ∙ ln (Tf / Ti) + nR ∙ ln (Vf / Vi) , can you show how to derive the “pressure” form: ∆S = CP ∙ ln (Tf / Ti) + nR ∙ ln (Pi / Pf)? Hint: replace Vf / Vi using the perfect gas law. Also you need to know that ln(a∙c / b • d) =ln(a /b) +ln(c /d), and CV +nR=CP
In the formula for entropy change of a system: ∆S = CV ∙ ln (Tf / Ti) + nR ∙ ln (Vf / Vi) , can you show how to derive the “pressure” form: ∆S = CP ∙ ln (Tf / Ti) + nR ∙ ln (Pi / Pf)? Hint: replace Vf / Vi using the perfect gas law. Also you need to know that ln(a∙c / b • d) =ln(a /b) +ln(c /d), and CV +nR=CP
Chemistry: An Atoms First Approach
2nd Edition
ISBN:9781305079243
Author:Steven S. Zumdahl, Susan A. Zumdahl
Publisher:Steven S. Zumdahl, Susan A. Zumdahl
Chapter16: Spontaneity, Entropy, And Free Energy
Section: Chapter Questions
Problem 84AE: Calculate the entropy change for the vaporization of liquid methane and liquid hexane using the...
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In the formula for entropy change of a system: ∆S = CV ∙ ln (Tf / Ti) + nR ∙ ln (Vf / Vi) , can you show how to derive the “pressure” form: ∆S = CP ∙ ln (Tf / Ti) + nR ∙ ln (Pi / Pf)?
Hint: replace Vf / Vi using the perfect
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