1. Air undergoes a polytropic expansion in a piston cylinder assembly. The initial temperature of the air is 800 K and the pressure is 2 MPa. The initial volume is 0.1 L in the cylinder. The final volume of the cylinder is 0.8 L. The final pressure is 100 kPa. a. What is the polytropic coefficient, n? b. What is the final temperature in K? c. What is the work done by the air on the piston cylinder assembly during this process in J? d. What is the heat transfer that takes place during this process in J? 1 V

1. Air undergoes a polytropic expansion in a piston cylinder assembly. The initial temperature of the air is 800 K and the pressure is 2 MPa. The initial volume is 0.1 L in the cylinder. The final volume of the cylinder is 0.8 L. The final pressure is 100 kPa. a. What is the polytropic coefficient, n? b. What is the final temperature in K? c. What is the work done by the air on the piston cylinder assembly during this process in J? d. What is the heat transfer that takes place during this process in J? 1 V

Refrigeration and Air Conditioning Technology (MindTap Course List)

8th Edition

ISBN:9781305578296

Author:John Tomczyk, Eugene Silberstein, Bill Whitman, Bill Johnson

Publisher:John Tomczyk, Eugene Silberstein, Bill Whitman, Bill Johnson

Chapter2: Matter And Energy

Section: Chapter Questions

Problem 29RQ: If 3000 ft3 of air is crossing an evaporator coil and iscooled from 75F to 55F, what would be the...

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