An automobile engine is about 20 to 30% efficient in converting chemical energy to mechanical energy.Cells are about 39% efficient in the transformation of glucose to ATP.The rest of the energy is lost as heat.This is illustrative of the

Question

Quizplus · Accepted Answer

The second law of thermodynamics states that energy transformations are not 100% efficient and some energy is always lost as heat, which is why both engines and cells lose energy as heat during energy conversion processes.

An Automobile Engine Is About 20 to 30% Efficient in Converting