A heat engine absorbs 150 J of heat from a hot reservoir and rejects 90 J to a cold reservoir.What is the efficiency of this engine?

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 absorbed and the heat rejected, which is 150 J - 90 J = 60 J. Therefore, the efficiency is (60 J / 150 J) * 100% = 40%.

A Heat Engine Absorbs 150 J of Heat from a Hot