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Thermodynamics Multiple Questions and Answers.
| 6. | A Carnot engine working between 300 K and 600 K has a work output of 800 J per cycle. The amount of heat energy supplied to the engine from source per cycle is? | ||
| A. | 1200J | ||
| B. | 1600J | ||
| C. | 2400J | ||
| D. | 3200J | ||
| 7. | Heat capacity of a substance is infinite. It means? | ||
| A. | Heat is given out | ||
| B. | Heat is taken out | ||
| C. | No change in temperature | ||
| D. | Heat is first given out and then taken out | ||
| 9. | The temperature of reservoir of Carnot’s engine operating with an efficiency of 70% is 1000K. What is the temperature of source? | ||
| A. | 300K | ||
| B. | 400K | ||
| C. | 500K | ||
| D. | 700K | ||
| 10. | The temperature of sink of Carnot engine is 27°C. Efficiency is 25%. Then? | ||
| A. | 227°C | ||
| B. | 327°C | ||
| C. | 127°C | ||
| D. | 27°C | ||
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