Question

An internal combustion engine does 356 kJ of useful work using 946 kJ of thermal energy from the gasoline consumed in the engine. What is the efficiency of this engine?

Answer 1

The efficiency of this engine is 37.63 %.

Step-by-step explanation:

Given;

useful output work done by the combustion engine, = 356 kJ

input work, = 946 kJ

The efficiency of the combustion engine is calculated as;

`Efficiency = (0utput \ work)/(1nput \ work) * 100\%\\\\Efficiency = (356 \ * \ 10^3)/(946 \ * \ 10^3) * 100\%\\\\Efficiency = 37.63 \ \%`

Therefore, the efficiency of this engine is 37.63 %.