During each cycle of operation, the thermal energy input to a heat engine is 400 J and the exhaust is 300 J. This engine's efficiency is

Question

Quizplus · Accepted Answer

The efficiency of a heat engine is calculated using the formula: Efficiency = (Work output / Heat input) * 100%. The work output is the difference between the heat input and the exhaust, which is 400 J - 300 J = 100 J. Therefore, the efficiency is (100 J / 400 J) * 100% = 25%.

During Each Cycle of Operation, the Thermal Energy Input to a Heat