Explore topic-wise MCQs in Thermodynamics Questions and Answers.

This section includes 2 Mcqs, each offering curated multiple-choice questions to sharpen your Thermodynamics Questions and Answers knowledge and support exam preparation. Choose a topic below to get started.

1.	A piston cylinder contains 0.5 kg of air at 500 kPa and 500 K. The air expands in a process so pressure is linearly decreasing with volume to a final state of 100 kPa and 300 K. Find the work in the process.
A.	56.1 kJ
B.	66.1 kJ
C.	76.1 kJ
D.	86.1 kJ
Answer» E.

Discussion

2.	A piston-cylinder device initially contains air at 150 kPa and 27°C. At this state, the volume is 400 litre. The mass of the piston is such that a 350 kPa pressure is required to move it. The air is now heated until its volume has doubled. Determine the total heat transferred to the air.
A.	747 kJ
B.	757 kJ
C.	767 kJ
D.	777 kJ
Answer» D. 777 kJ

Discussion

Explore topic-wise MCQs in Thermodynamics Questions and Answers.

A piston cylinder contains 0.5 kg of air at 500 kPa and 500 K. The air expands in a process so pressure is linearly decreasing with volume to a final state of 100 kPa and 300 K. Find the work in the process.

A piston-cylinder device initially contains air at 150 kPa and 27°C. At this state, the volume is 400 litre. The mass of the piston is such that a 350 kPa pressure is required to move it. The air is now heated until its volume has doubled. Determine the total heat transferred to the air.