(a) Interpretation Introduction To determine: The enthalpy change of the given reaction. Explanation Given The enthalpy changes of the given reactions are: A → B Δ H = + 30 kJ B → C Δ H = + 60 kJ A → C Δ H = ? The Hess’s law states that the reaction completed in one step or in a number of steps, it has same value of enthalpy change. Since, the given two reactions give the third reaction on addition. Therefore, these reactions are two steps of the third reaction. Thus, the enthalpy change of the given reaction is the sum of first two reactions (b) Interpretation Introduction To determine: The enthalpy diagram for the given substances A , B and C .

Chemistry: The Central Science (14th Edition)

14th Edition

ISBN: 9780134414232

Author: Theodore E. Brown, H. Eugene LeMay, Bruce E. Bursten, Catherine Murphy, Patrick Woodward, Matthew E. Stoltzfus

Publisher: PEARSON

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Chapter 5, Problem 62E

(a)

Interpretation Introduction

To determine: The enthalpy change of the given reaction.

(b)

Interpretation Introduction

To determine: The enthalpy diagram for the given substances A, B and C .

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Chapter 5, Problem 61E

Chapter 5, Problem 63E

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Chemistry: The Central Science (14th Edition)

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