Question

In a carnot engine , temperature of the sink is increased ,what will happen ti its efficiency

Answer 1

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If sink temperature increases, there will be decrease in temperature gradient and efficiency will fall down.

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Answer 2

In a carnot engine , temperature of the sink is increased Therefore, if we increase the temperature of the source, efficiency will increase.The efficiency of the carnot engine can be increased by either increasing the sink temperature or by decreasing the reservoir temperature.If the difference between temperature of the source and the sink is increased (i.e. temperature of source increase or temperature of sink decreases), the value decreases and thus efficiency increases.The efficiency of a Carnot engine world between two temperatures is 0.2 , when the temperature of the source is increased by 25∘C , the efficiency increases to 0.25.The efficiency of the carnot engine can be increased by either increasing the sink temperature or by decreasing the reservoir temperature.The efficiency of carnot's engine is 50%.Therefore, the efficiency of the heat engine can be increased by decreasing the temperature of the cold sink or increasing the temperature of the hot source.

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