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 entropyAS.Note: if you have not been given enough information to decide a sign, select the "unknown" option.reactionobservationsconclusionsAH isAThis reaction is always spontaneous, butproceeds slower at temperatures below45. °C.AS isΔΗ isThis reaction is spontaneous only above150. °C but proceeds at a faster rate above180. °C.AS isΔΗ isThis reaction is exothermic and proceedsslower at temperatures below 67. °C.AS isXC(pick one)(pick one)(pick one)(pick one) ✓(pick one)(pick one)Ś?

Entropy change is i) +ve when randomness increases ii) -ve when randomness decreases Enthalpy…

reaction A B с observations This reaction is always spontaneous, but proceeds slower at temperatures below 45. °C. This reaction is spontaneous only above 150. °C but proceeds at a faster rate above 180. °C. This reaction is exothermic and proceeds slower at temperatures below 67. °C. conclusions AH is AS is AH is AS is AH is AS is (pick one) ✓ (pick one) ✓ (pick one) ✓ (pick one) ✓ (pick one) (pick one)

reaction A B с observations This reaction is always spontaneous, but proceeds slower at temperatures below 45. °C. This reaction is spontaneous only above 150. °C but proceeds at a faster rate above 180. °C. This reaction is exothermic and proceeds slower at temperatures below 67. °C. conclusions AH is AS is AH is AS is AH is AS is (pick one) ✓ (pick one) ✓ (pick one) ✓ (pick one) ✓ (pick one) (pick one)

Chemistry

10th Edition

ISBN:9781305957404

Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Chapter1: Chemical Foundations

Section: Chapter Questions

Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...

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