Q. A frictionless heat engine can be 100% efficient only if its exhaust temperature is (Solved)
1. Equal to its input temperature
2. Less than its input temperature
3. 0?K
4. ?100?C
5. 0?C
- c. 0?K
1. Equal to its input temperature
2. Less than its input temperature
3. 0?K
4. ?100?C
5. 0?C