engineering recuitment GATE ME 2023-24 Test Series Thermodynamics Second Law of Thermodynamics and Entropy Statements of Second Law of Thermodynamics
Which of the below stated are properties of a PMM-2?
1. When the net work is equal to the heat absorbed and work efficiency is 100%.
2. Heat is exchanged from one heat reservoir only.
3. It violates Kelvin-Planck statement.
4. It is a hypothetical machine.
1
1, 2 and 4
2
1, 3 and 4
3
2, 3 and 4
4
1, 2, 3 and 4