Answer:
43.2%
Explanation:
Given that,
Heat absorbed by a carnot heat engine, [tex]Q_1=235\ kW[/tex]
Heat rejected to the atmosphere, [tex]Q_2=164\ kW[/tex]
We need ti find the thermal efficiency of the heat engine. It is equal to the ratio of output work to the energy supplied. Its mathematical form is given by :
[tex]\eta=1-\dfrac{Q_1}{Q_2}\\\\\eta=1-\dfrac{235}{164}\\\\\eta=-0.432[/tex]
or
[tex]\eta=-43.2\%[/tex]
The egative value of efficiency shows work is done by the engine.
