Answered: The refrigerant 134a enters a…

The refrigerant 134a enters a throttling valve and releases 0.9 kJ/kg of heat to the environment at 287 K. What is the entropy change of the medium?

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

Chapter39: Residential Energy Auditing

Section: Chapter Questions

Problem 4RQ: Performing a home energy audit starts with a visualinspection of a home and its energy systems which...

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The refrigerant 134a enters a throttling valve and releases 0.9 kJ/kg of heat to the environment at 287 K. What is the entropy change of the medium?

a)	0.003461 kJ/kgK

B)	0.001678 kJ/kgK

NS)	0.003136 kJ/kgK

D)	0.004092 kJ/kgK

TO)	0.002581 kJ/kgK

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