Use the observations about each chemical reaction in the table below to decide the sign (positive or negative) of the reaction enthalpy AH and reaction entropy AS. Note: if you have not been given enough information to decide a sign, select the "unknown" option. reaction observations conclusions AH is A This reaction is spontaneous except below -21. °C but proceeds at a slower rate below 159. °C. AS is AH is B This reaction is faster above 140. °C than below. AS is AH is C This reaction is spontaneous only below 61. °C. AS is ✓ (pick one) positive negative unknown LAPIGA UNTU (pick one) (pick one) (pick one)
Use the observations about each chemical reaction in the table below to decide the sign (positive or negative) of the reaction enthalpy AH and reaction entropy AS. Note: if you have not been given enough information to decide a sign, select the "unknown" option. reaction observations conclusions AH is A This reaction is spontaneous except below -21. °C but proceeds at a slower rate below 159. °C. AS is AH is B This reaction is faster above 140. °C than below. AS is AH is C This reaction is spontaneous only below 61. °C. AS is ✓ (pick one) positive negative unknown LAPIGA UNTU (pick one) (pick one) (pick one)
Chemistry: An Atoms First Approach
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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