From the energy that is input into an engine on each cycle, 500 kJ of mechanical work are produced and 600 kJ of heat are exhausted into the environment. What is the efficiency of the engine?

Question

Quizplus · Accepted Answer

The efficiency of an engine is calculated as the ratio of the work output to the energy input. Here, the work output is 500 kJ and the total energy input is the sum of work output and heat exhausted, which is 500 kJ + 600 kJ = 1100 kJ. Efficiency = (500 kJ / 1100 kJ) * 100% = 45.5%.

From the Energy That Is Input into an Engine on Each