Question

Explain what do you understand by the efficiency of a heat engine?

Answer 1

Hey!!!...here is ur answer

The heat engine efficiency is a measure of the energy that can be converted to work as a fraction of the total energy

hope it will help you ☺

Answer 2

The efficiency of a heat engine is stated as the ratio of the net work done by the heat engine and heat absorbed by the working substance.
Suppose a heat engine absorbs ${ Q }{ 1 }$ heat from the hot reservoir and gives
${ Q }{ 2 }$ heat to the colder reservoir. So, the work done by the working substance is in the photho