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Ten moles of gaseous ammonia are heated from 300 to 1000 K at constant volume. The gas can be considered ideal and has a value of Cp / R = 3.578 + 3.02 x 10-3 T - 0.186 x 105 T -2 (for T in K). What will be the value of the entropy change corresponding to this process? What can be said about the spontaneity of the process? Consider that, for ideal gases Cv≈5 / 7 Cp.

Ten moles of gaseous ammonia are heated from 300 to 1000 K at constant volume. The gas can be considered ideal and has a value of Cp / R = 3.578 + 3.02 x 10-3 T - 0.186 x 105 T -2 (for T in K). What will be the value of the entropy change corresponding to this process? What can be said about the spontaneity of the process? Consider that, for ideal gases Cv≈5 / 7 Cp.

Introduction to Chemical Engineering Thermodynamics
Introduction to Chemical Engineering Thermodynamics
8th Edition
ISBN:9781259696527
Author:J.M. Smith Termodinamica en ingenieria quimica, Hendrick C Van Ness, Michael Abbott, Mark Swihart
Publisher:J.M. Smith Termodinamica en ingenieria quimica, Hendrick C Van Ness, Michael Abbott, Mark Swihart
Chapter1: Introduction
Section: Chapter Questions
Problem 1.1P
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Ten moles of gaseous ammonia are heated from 300 to 1000 K at constant volume. The gas can be considered ideal and has a value of Cp / R = 3.578 + 3.02 x 10-3 T - 0.186 x 105 T -2 (for T in K). What will be the value of the entropy change corresponding to this process? What can be said about the spontaneity of the process? Consider that, for ideal gases Cv≈5 / 7 Cp.

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