11th Edition

ISBN: 9780134193601

Author: Petrucci

Publisher: PEARSON

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Chapter 10, Problem 101IAE

Given the bond-dissociation energies: nitrogen-to-oxygen bond in N O , 631 k J m o l − 1 , H − H in H 2 , 436 k J m o l 1 ; N − H in H 2 O , 463 k J m o l − 1 ; N − H calculate Δ r H for the reaction below.

2 N O ( g ) + 5 H 2 ( g ) → 2 N H 3 ( g ) + 2 H 2 O ( g )

Formula Formula Bond dissociation energy (BDE) is the energy required to break a bond, making it an endothermic process. BDE is calculated for a particular bond and therefore consists of fragments such as radicals since it undergoes homolytic bond cleavage. For the homolysis of a X-Y molecule, the energy of bond dissociation is calculated as the difference in the total enthalpy of formation for the reactants and products. X-Y → X + Y BDE = Δ H f X + Δ H f Y – Δ H f X-Y where, ΔHf is the heat of formation.

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Chapter 10, Problem 100E

Chapter 10, Problem 102IAE

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Chapter 10 Solutions

GENERAL CHEMISTRY-MOD.MASTERINGCHEM.

Ch. 10 - Write Lewis symbols for the following atoms. (a)...Ch. 10 - Write Lewis symbols for the following ions. (a)...Ch. 10 - Write plausible Lewis structures for the following...Ch. 10 - Each of the following molecules contains at least...Ch. 10 - By means of Lewis structures, represent bonding...Ch. 10 - Which of the following have Lewis structures that...Ch. 10 - Prob. 7E Ch. 10 - Suggest reasons why the following do not exist as...Ch. 10 - Describe what is wrong with each of the following...Ch. 10 - Describe what is wrong with each of the following...

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Given the bond-dissociation energies: nitrogen-to-oxygen bond in N O , 631 k J m o l − 1 , H − H in H 2 , 436 k J m o l 1 ; N − H in H 2 O , 463 k J m o l − 1 ; N − H calculate Δ r H for the reaction below. 2 N O ( g ) + 5 H 2 ( g ) → 2 N H 3 ( g ) + 2 H 2 O ( g )

Solution Summary: The author explains how the Delta_rH of the given reaction should be determined.

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