A Carnot enginetakes 300 calories of heat from a source at 500 K and rejects 150 calories of heat to the sink. The temperature of the sink is

A Carnot enginetakes 300 calories of heat from a source at 500 K and r

1.	A Carnot enginetakes 300 calories of heat from a source at 500 K and rejects 150 calories of heat to the sink. The temperature of the sink is
Answer» 125 K 250 K 750 K 1000 K Solution :`Q_(1)=300cal,Q_(2)=150cal` `W=Q_(1)-Q_(2)=150cal` `eta=W/Q_(1)=150/300=1/2` `eta=1-T_(2)/T_(1)` `rArr1/2=1-T_(2)/500rArrT_(2)/500=1/2` `T_(2)=250K`

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A Carnot enginetakes 300 calories of heat from a source at 500 K and rejects 150 calories of heat to the sink. The temperature of the sink is

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