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v Correct • Part C Since the aluminum bar is not an isolated system, the second law of thermodynamics cannot be applied to the bar alone. Rather, it should be applied to the bar in combination with its surroundings (the lake). Assume that the entropy bar is -1238 J/K. What is the change in total entropy ASotal? Express your answer numerically in joules per Kelvin • View Available Hint(s) Rumel undo redo feset keyboard shortcuts hielp AStotal = 2008 J/K Submit Previous Answers X Incorrect; Try Again; One attempt remaining Part D Complete previous part(s)

v Correct • Part C Since the aluminum bar is not an isolated system, the second law of thermodynamics cannot be applied to the bar alone. Rather, it should be applied to the bar in combination with its surroundings (the lake). Assume that the entropy bar is -1238 J/K. What is the change in total entropy ASotal? Express your answer numerically in joules per Kelvin • View Available Hint(s) Rumel undo redo feset keyboard shortcuts hielp AStotal = 2008 J/K Submit Previous Answers X Incorrect; Try Again; One attempt remaining Part D Complete previous part(s)

College Physics
College Physics
11th Edition
ISBN:9781305952300
Author:Raymond A. Serway, Chris Vuille
Publisher:Raymond A. Serway, Chris Vuille
Chapter1: Units, Trigonometry. And Vectors
Section: Chapter Questions
Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...
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<Chapter 18 Does Entropy Really Always Increase? 1 of 10 I Revi • View Available Hint(s) An aluminum bar of mass 2.00 kg at 300 °C is thrown into a lake. The temperature of the water in the lake is 15.0 ° C; the specific heat capacity of aluminum is 900 J/(kg · K) ASlake = 1780 J/K Submit Previous Answers Correct Part B Has the entropy of the aluminum bar decreased or increased? • View Available Hint(s) Since the entropy change of a system is always positive, we can deduce that the entropy the aluminum bar has increased. Since the final lower temperature of the bar means lower average speed of molecular motion, we can deduce that the entropy of the bar has decreased. We don't have enough information to determine whether the entropy of the aluminum bar has decreased or increased. Submit Previous Answers v Correct Part C Since the aluminum bar is not an isolated system, the second law of thermodynamics cannot be applied to the bar alone. Rather, it should be applied to the bar in combination with its surroundings (the lake). Assume that the entropy change bar is -1238 J/K. What is the change in total entropy AStotal? Express your answer numerically in joules per Kelvin • View Available Hint(s) Templates Symbols undo redo Teset keyboard shortcuts help AStotal = 2008 J/K Submit Previous Answers X Incorrect; Try Again; One attempt remaining Part D Complete previous part(s) Provide Feedback Ne
Transcribed Image Text:<Chapter 18 Does Entropy Really Always Increase? 1 of 10 I Revi • View Available Hint(s) An aluminum bar of mass 2.00 kg at 300 °C is thrown into a lake. The temperature of the water in the lake is 15.0 ° C; the specific heat capacity of aluminum is 900 J/(kg · K) ASlake = 1780 J/K Submit Previous Answers Correct Part B Has the entropy of the aluminum bar decreased or increased? • View Available Hint(s) Since the entropy change of a system is always positive, we can deduce that the entropy the aluminum bar has increased. Since the final lower temperature of the bar means lower average speed of molecular motion, we can deduce that the entropy of the bar has decreased. We don't have enough information to determine whether the entropy of the aluminum bar has decreased or increased. Submit Previous Answers v Correct Part C Since the aluminum bar is not an isolated system, the second law of thermodynamics cannot be applied to the bar alone. Rather, it should be applied to the bar in combination with its surroundings (the lake). Assume that the entropy change bar is -1238 J/K. What is the change in total entropy AStotal? Express your answer numerically in joules per Kelvin • View Available Hint(s) Templates Symbols undo redo Teset keyboard shortcuts help AStotal = 2008 J/K Submit Previous Answers X Incorrect; Try Again; One attempt remaining Part D Complete previous part(s) Provide Feedback Ne
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