A heat engine produces a power output of 1.5 * 10⁵ W when it receives 50.0 MJ of heat per minute. The efficiency of the engine is

Question

Quizplus · Accepted Answer

The efficiency of a heat engine is given by the ratio of the power output to the heat input. In this case, the power output is 1.5 * 10^5 W and the heat input is 50.0 MJ/min, which is equal to 8.33 * 10^5 J/s. Therefore, the efficiency is:efficiency = power output / heat input= (1.5 * 10^5 W) / (8.33 * 10^5 J/s)= 0.18Therefore, the efficiency of the engine is 0.18, which corresponds to choice A.

A Heat Engine Produces a Power Output of 1