Use the observations about each chemical reaction in the table below to decide the sign (positive or negative) of the reaction enthalpy ΔH and reaction entropy ΔS. Note: if you have not been given enough information to decide a sign, select the "unknown" option.reactionobservationsconclusionsAThis reaction is endothermic and proceeds slower at temperatures below −32.°C.His Sis BThe reverse of this reaction is always spontaneous but proceeds faster at temperatures above −13.°C.His Sis CThis reaction is spontaneous only above 109.°C but proceeds at a slower rate below 129.°C.His Sis

ΔH ΔS ΔG Spontaneity + - + Non-spontaneous - + - spontaneous - - + or - Low temperature:…

Answered: Use the observations about each…

2nd Edition

ISBN:9781305079243

Author:Steven S. Zumdahl, Susan A. Zumdahl

Publisher:Steven S. Zumdahl, Susan A. Zumdahl

Chapter16: Spontaneity, Entropy, And Free Energy

Section: Chapter Questions

Problem 2RQ: What is the second law of thermodynamics? For any process, there are four possible sign combinations...

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Question

Use the observations about each chemical reaction in the table below to decide the sign (positive or negative) of the reaction enthalpy

ΔH

and reaction entropy

ΔS

Note: if you have not been given enough information to decide a sign, select the "unknown" option.

reaction	observations	conclusions
A	This reaction is endothermic and proceeds slower at temperatures below −32.°C .	His
Sis
B	The reverse of this reaction is always spontaneous but proceeds faster at temperatures above −13.°C .	His
Sis
C	This reaction is spontaneous only above 109.°C but proceeds at a slower rate below 129.°C .	His
Sis