Question

A carnot engine has an efficiency of 50% when its source is at a temperature 327°C. The temperature of the sink is :-

(1) 15°C

(2) 100°C

(3) 200°C

(4) 27°C

Answer 1

Correct option is (4) 27°C

Efficiency of carnot engine

So temperature of sink is °C = 327 - 300 = 27°C