A sample of 1 mol ammonia is heated from an initial temperature of 298 K to a final temperature of T2 at constant pressure of 1 atm until the volume has increased by a factor of 3 (V2=3V1). Calculate q, w, AH, AU and AS for this process. (Assume ideal gas behaviour). The constant-pressure heat capacity of ammonia varies with temperature according to the expression given below. Cp,ammonia (cal/K) = 6.2 + 7.9×10³T - 7.3x107T? %3D

Introduction to Chemical Engineering Thermodynamics
8th Edition
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Author:J.M. Smith Termodinamica en ingenieria quimica, Hendrick C Van Ness, Michael Abbott, Mark Swihart
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A sample of 1 mol ammonia is heated from an initial temperature of 298 K to a final temperature of T2
at constant pressure of 1 atm until the volume has increased by a factor of 3 (V;=3V1). Calculate q, w, AH, AU and AS for
this process. (Assume ideal gas behaviour). The constant-pressure heat capacity of ammonia varies with temperature
according to the expression given below.
Cp,ammonia (cal/K) = 6.2 + 7.9×10³T - 7.3x107T
Transcribed Image Text:A sample of 1 mol ammonia is heated from an initial temperature of 298 K to a final temperature of T2 at constant pressure of 1 atm until the volume has increased by a factor of 3 (V;=3V1). Calculate q, w, AH, AU and AS for this process. (Assume ideal gas behaviour). The constant-pressure heat capacity of ammonia varies with temperature according to the expression given below. Cp,ammonia (cal/K) = 6.2 + 7.9×10³T - 7.3x107T
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