Physical Chemistry
Physical Chemistry
3rd Edition
ISBN: 9780321812001
Author: ENGEL, Thomas/ Reid
Publisher: Pearson College Div
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Chapter 2, Problem 2.38NP
Interpretation Introduction

Interpretation: The value of q, w, ΔU and ΔH for the given process needs to be determined.

Concept Introduction: The change in internal energy is calculated as follows:

  ΔU=nCV.m(TfTi)

Here, n is number of moles, CV,m is molar heat at constant volume and T is temperature.

The work done is represented as follows:

  w=PexternalΔV

Here, P is external pressure and ΔV is change in volume.

The enthalpy of a reaction is represented as follows:

  ΔH=ΔU+nRΔT

Here, n is number of moles, R is Universal gas constant and ΔT is change in temperature.

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