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1. For benzaldehyde, AvapH = 43.44 kJ/mol at 452.7 K (this is the standard boiling point). The heat capacity (in J/mol-K) of benzaldehyde vapor can be modeled for 400 < T< 600 K by 5.5456 x 106 Cp vapor (T) = 115.476 +0.164216 T T² (a) If AvapH = 43.8 kJ/mol at 424 K, and Cplia, the heat capacity of liquid benzaldehyde, is constant between 424 and 452.7 K, what is its value in J/mol.K? (b) Use the information from part (a) to find AvapH (in kJ/mol) at 400 K and 500 K.

1. For benzaldehyde, AvapH = 43.44 kJ/mol at 452.7 K (this is the standard boiling point). The heat capacity (in J/mol-K) of benzaldehyde vapor can be modeled for 400 < T< 600 K by 5.5456 x 106 Cp vapor (T) = 115.476 +0.164216 T T² (a) If AvapH = 43.8 kJ/mol at 424 K, and Cplia, the heat capacity of liquid benzaldehyde, is constant between 424 and 452.7 K, what is its value in J/mol.K? (b) Use the information from part (a) to find AvapH (in kJ/mol) at 400 K and 500 K.

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
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1. For benzaldehyde, AvapH = 43.44 kJ/mol at 452.7 K (this is the standard boiling point). The heat capacity (in J/mol-K) of benzaldehyde vapor can be modeled for 400 < T< 600 K by 5.5456 × 106 C₂vapor (T) vapor (T) = 115.476+ 0.164216 T - T² (a) If AvapH = 43.8 kJ/mol at 424 K, and Cpliq, the heat capacity of liquid benzaldehyde, is constant between 424 and 452.7 K, what is its value in J/mol.K? (b) Use the information from part (a) to find AvapH (in kJ/mol) at 400 K and 500 K.
Transcribed Image Text:1. For benzaldehyde, AvapH = 43.44 kJ/mol at 452.7 K (this is the standard boiling point). The heat capacity (in J/mol-K) of benzaldehyde vapor can be modeled for 400 < T< 600 K by 5.5456 × 106 C₂vapor (T) vapor (T) = 115.476+ 0.164216 T - T² (a) If AvapH = 43.8 kJ/mol at 424 K, and Cpliq, the heat capacity of liquid benzaldehyde, is constant between 424 and 452.7 K, what is its value in J/mol.K? (b) Use the information from part (a) to find AvapH (in kJ/mol) at 400 K and 500 K.
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