1. Consider filling a "type A" gas cylinder from with water from a high-pressure supply line as shown below. Before filling, the cylinder is empty (vacuum). The valve is then opened, exposing the tank to a 3 MPa line at 773 K until the pressure of the cylinder reaches 3 MPa. The valve is then closed. The volume of a "Type A” cylinder is 50 liters. a) What is the change in entropy of the universe immediately after the valve is closed? b) If the cylinder then sits in storage at 293 K for a long time, what is the entropy change of the universe? You may assume heat transfer to the surroundings. Water 3 MPa; 773K Tsum = 293 K Initially: vacuum

1. Consider filling a "type A" gas cylinder from with water from a high-pressure supply line as shown below. Before filling, the cylinder is empty (vacuum). The valve is then opened, exposing the tank to a 3 MPa line at 773 K until the pressure of the cylinder reaches 3 MPa. The valve is then closed. The volume of a "Type A” cylinder is 50 liters. a) What is the change in entropy of the universe immediately after the valve is closed? b) If the cylinder then sits in storage at 293 K for a long time, what is the entropy change of the universe? You may assume heat transfer to the surroundings. Water 3 MPa; 773K Tsum = 293 K Initially: vacuum

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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