48. The dissolving of NH4NO3 in water readily occurs. As it dissolves, the temperature of the water decreases. What are the signs of AH, AS, and AG for the dissolving of NH¼NO3 in water? A) AH > 0, AS > 0, and AG < 0 B) AH > 0, AS > 0, and AG >0 C) AH < 0, AS < 0, and AG < 0 D) AH < 0, AS > 0, and AG > 0 49. If a reaction is exothermic and its entropy increases, you would expect the reaction to: A) always be thermodynamically favored and spontaneous. B) be thermodynamically favored and spontaneous at low temperatures. C) be thermodynamically favored and spontaneous at higher temperatures. D) never be thermodynamically favored and would be considered nonspontaneous. 50. If a reaction is exothermic and its entropy decreases, you would expect the reaction to: A) always be thermodynamically favored and spontaneous. B) be thermodynamically favored and spontaneous at low temperatures. C) be thermodynamically favored and spontaneous at higher temperatures. D) never be thermodynamically favored and would be considered nonspontaneous.

48. The dissolving of NH4NO3 in water readily occurs. As it dissolves, the temperature of the water decreases. What are the signs of AH, AS, and AG for the dissolving of NH¼NO3 in water? A) AH > 0, AS > 0, and AG < 0 B) AH > 0, AS > 0, and AG >0 C) AH < 0, AS < 0, and AG < 0 D) AH < 0, AS > 0, and AG > 0 49. If a reaction is exothermic and its entropy increases, you would expect the reaction to: A) always be thermodynamically favored and spontaneous. B) be thermodynamically favored and spontaneous at low temperatures. C) be thermodynamically favored and spontaneous at higher temperatures. D) never be thermodynamically favored and would be considered nonspontaneous. 50. If a reaction is exothermic and its entropy decreases, you would expect the reaction to: A) always be thermodynamically favored and spontaneous. B) be thermodynamically favored and spontaneous at low temperatures. C) be thermodynamically favored and spontaneous at higher temperatures. D) never be thermodynamically favored and would be considered nonspontaneous.

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

Chapter18: Electrochemistry

Section: Chapter Questions

Problem 9RQ: What characterizes an electrolytic cell? What is an ampere? When the current applied to an...

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