2. What is the maximum efficiency of a heat engine whose operating temperatures are 560°C and 345°C? 3. A heat engine exhausts its heat at 340°C and has a Carnot efficiency of 36%. What exhaust temperature would enable it to achieve a Carnot efficiency of 42%?
1. Research and differentiate in tabular form the gasoline and diesel engine
2. What is the maximum efficiency of a
3. A heat engine exhausts its heat at 340°C and has a Carnot efficiency of 36%. What exhaust temperature would enable it to achieve a Carnot efficiency of 42%?
4. The low temperature of a freezer cooling coil is and the discharge temperature is 33°C. What is the maximum theoretical coefficient of performance?
5. What volume of water at 0°C can a freezer make into ice cubes in 1.0 h, if the coefficient of performance of the cooling unit is 6.0 and the power input is 1.2 kilowatt
6. What is the change in entropy of 320 g of steam at 100°C when it is condensed to water at 100°C?
7. An aluminum rod
8. 1.0 kg of water at 35°C is mixed with 1.0 kg of water at 45°C in a well-insulated container. Estimate the net change in entropy of the system.
9. The COPs are defined differently for heat pumps and air conditioners. Explain why
10. Suppose a lot of papers are strewn all over the floor; then you stack them neatly. Does this violate the second law of
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