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Second Law of Thermodynamics

If the temper...

Question

If the temperature of the source is increased, the efficiency of a carnot engine:

A

increases

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B

decreases

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C

remain constant

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D

first increases and then remain constant

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Solution

The correct option is D increases
Efficiency of a engine is given by $η = 1 - \frac{T_{1}}{T_{2}}$ , where $T_{2}$ is the temperature of the source .
Therefore, if we increase the temperature of the source, efficiency will increase.

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