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The efficiency of an ideal heat engine c...

The efficiency of an ideal heat engine can be`100%` if the sink (exhaust temperature) is at the temperature of ’

A

the source

B

melting point of ice

C

absolute zero

D

boiling point of water

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The correct Answer is:
C
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  10. In an ideal refrigerator, heat from inside at 280 K is transferred to ...

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  15. For a carnot engine the source and the sink temperatures are 527^@C an...

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  17. The efficiency of a heat engine is 50% and the temperature of the sink...

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