Explanation The stated reaction is, 2NO ( g ) + O 2 ( g ) → N 2 O 4 ( g ) The enthalpy change for the reaction N 2 O 4 ( g ) → 2 NO 2 ( g ) is given to be + 57.9 kJ . Hence, the enthalpy change for the reaction 2 NO 2 ( g ) → N 2 O 4 ( g ) is − 57.9 kJ ( Δ H 1 ) . The enthalpy change for the reaction 2NO ( g ) +O 2 ( g ) → 2 NO 2 ( g ) is given to be − 113.1 kJ ( Δ H 2 )

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 5.6, Problem 5.8.1PE

Interpretation Introduction

To determine: The change in enthalpy for the given reaction.

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Chapter 5.5, Problem 5.7.2PE

Chapter 5.6, Problem 5.8.2PE

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Chapter 5 Solutions

Chemistry: The Central Science (14th Edition)

Ch. 5.2 - A mixture of gases A2 and B2 are introduced to a...Ch. 5.2 - Practice Exercise 2 Calculate the change in the...Ch. 5.3 - A solid sample of Zn(OH)2 is added to 0.350 L of...Ch. 5.3 - Practice Exercise 2 Calculate the work, in J, if...Ch. 5.3 - Practice Exercise 1 A chemical reaction that gives...Ch. 5.3 - Prob. 5.3.2PE Ch. 5.4 - Prob. 5.4.1PE Ch. 5.4 - Prob. 5.4.2PE Ch. 5.5 - The coinage metals (Group 1B) copper, silver, and...Ch. 5.5 - Prob. 5.5.2PE

Ch. 5.5 - Practice Exercise 1 When 0.243 g of Mg metal is...Ch. 5.5 - Practical exercise 2 When 50.0 mL of 0.100MAgNO3...Ch. 5.5 - Prob. 5.7.1PE Ch. 5.5 - Practice Exercise 2 A 0.5865-g sample of lactic...Ch. 5.6 - Prob. 5.8.1PE Ch. 5.6 - Prob. 5.8.2PE Ch. 5.6 - Calculate H for the reaction C(s)+...Ch. 5.6 - Prob. 5.9.2PE Ch. 5.7 - Prob. 5.10.1PE Ch. 5.7 - Prob. 5.10.2PE Ch. 5.7 - Prob. 5.11.1PE Ch. 5.7 - Prob. 5.11.2PE Ch. 5.7 - Practice Exercise 1 Given 2SO2(g) + 02(g) —>...Ch. 5.7 - Prob. 5.12.2PE Ch. 5.8 - Use the average bond enthalpies in Table 5.41to...Ch. 5.8 - Use the average bond enthalpies in Table 5.4 to...Ch. 5.9 - Prob. 5.14.1PE Ch. 5.9 - Prob. 5.14.2PE Ch. 5 - One of the important ideas of thermodynamics is...Ch. 5 - Two positively charged spheres, each with a charge...Ch. 5 - SI The accompanying photo shows a pipevine...Ch. 5 - Consider the accompanying energy diagram. 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