Physical Chemistry
Physical Chemistry
3rd Edition
ISBN: 9780321812001
Author: ENGEL, Thomas/ Reid
Publisher: Pearson College Div
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Chapter 4, Problem 4.13NP
Interpretation Introduction

Interpretation:

The standard enthalpy ΔHR0 and standard internal energy change ΔUR0 associated with the oxidation of benzene needs to be calculated

Concept Introduction:

The standard enthalpy change for a reaction ΔHR0 is given in terms of the difference in the standard enthalpy of formation of the products and that of reactants.

  ΔHR0 = npΔHf0(products) - nrΔHf0(reactants)  ------(1)

For a given chemical reaction, ΔHR0 and ΔUR0 are related by the following equation:

  ΔHR0 = ΔUR0+ ΔnRT -----(2)

Here, Δn = change in the number of moles

R = gas constant; T = temperature

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