A refrigerator operates with coefficient of performance COP=3 and power P = 200 Watt. (a) Find how much time it takes for the refrigerator to transform 20 liters of water with initial temperature T = 0°C into ice with final temperature T = 0 °C; (b) Find the value and sign of the entropy change of the water inside the refrigerator as it transforms into ice; (c) Find the value and sign of the entropy change of the environment (Tenv = 23 °C) and of the total entropy.

A refrigerator operates with coefficient of performance COP=3 and power P = 200 Watt. (a) Find how much time it takes for the refrigerator to transform 20 liters of water with initial temperature T = 0°C into ice with final temperature T = 0 °C; (b) Find the value and sign of the entropy change of the water inside the refrigerator as it transforms into ice; (c) Find the value and sign of the entropy change of the environment (Tenv = 23 °C) and of the total entropy.

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

ChapterMA: Math Assessment

Section: Chapter Questions

Problem 1.1MA

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