Consider these two reactions: Reaction 1: 20F₂(g) → O₂(g) + 2 F₂ (g) AH = -49.4 kJ Reaction 2: N₂(g) + 20₂(g) 2NO₂(g) AH = +66.4 kJ Explain which reaction is non-spontaneous and justify your answer in terms of change in enthalpy and change in entropy.

Consider these two reactions: Reaction 1: 20F₂(g) → O₂(g) + 2 F₂ (g) AH = -49.4 kJ Reaction 2: N₂(g) + 20₂(g) 2NO₂(g) AH = +66.4 kJ Explain which reaction is non-spontaneous and justify your answer in terms of change in enthalpy and change in entropy.

Chemistry: Matter and Change

1st Edition

ISBN:9780078746376

Author:Dinah Zike, Laurel Dingrando, Nicholas Hainen, Cheryl Wistrom

Publisher:Dinah Zike, Laurel Dingrando, Nicholas Hainen, Cheryl Wistrom

Chapter15: Energy And Chemical Change

Section: Chapter Questions

Problem 95A

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Question

Consider these two reactions:
Reaction 1:
20F₂(g) → O₂(g) + 2 F₂ (g) AH = -49.4 kJ
Reaction 2:
N₂(g) + 20₂(g) 2NO₂(g) AH = +66.4 kJ
Explain which reaction is non-spontaneous and justify your answer in terms of change in
enthalpy and change in entropy.

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