One kilogram of ammonia initially at 8.0 bar and 50°C undergoes a process to 3.2 bar, 20°C while being rapidly expanded in a piston- cylinder assembly. Heat transfer between the ammonia and its surroundings occurs at an average temperature of 40°C. The work done by the ammonia is 40 kJ. Kinetic and potential energy effects can be ignored. Determine the heat transfer, in kJ, and the entropy production, in kJ/K. Step 1 × Your answer is incorrect. Determine the heat transfer, in kJ. Q12= i 5.5 Save for Later kJ Attempts: 1 of 3 used Submit Answer

One kilogram of ammonia initially at 8.0 bar and 50°C undergoes a process to 3.2 bar, 20°C while being rapidly expanded in a piston- cylinder assembly. Heat transfer between the ammonia and its surroundings occurs at an average temperature of 40°C. The work done by the ammonia is 40 kJ. Kinetic and potential energy effects can be ignored. Determine the heat transfer, in kJ, and the entropy production, in kJ/K. Step 1 × Your answer is incorrect. Determine the heat transfer, in kJ. Q12= i 5.5 Save for Later kJ Attempts: 1 of 3 used Submit Answer

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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