What is the efficiency of an ideal gas?

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(D) The efficiency of a heat engine is defined as the ratio of work done to the heat absorbed from the source. For an ideal gas undergoing a cycle,the

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Depends on the temperature

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(D) The efficiency of a heat engine is defined as the ratio of work done to the heat absorbed from the source. For an ideal gas undergoing a cycle,the efficiency depends on the temperatures of the source $(T_H)$ and the sink $(T_L)$. According to the Carnot theorem,the maximum efficiency of any heat engine operating between two temperatures is given by $\eta = 1 - \frac{T_L}{T_H}$. Therefore,the efficiency is not a fixed constant for an ideal gas but depends on the temperatures of the reservoirs involved in the thermodynamic process.

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