if the boiler operates at 600 K instead of 500 K the Carnot

, if the boiler operates at 600 K instead of 500 K, the Carnot efficiency (maximum efficiency possible) is most nearly: a) 45% b) 50% c) 55% d) None of these

Solution

Suppose Cold temperature is Tc

and hot temperature is Th .

(both must be in Kelvin)

then efficiency = 1 - ( Tc / Th)

so hot temp , Th = 600 K

cold temp is not given so plug the value of Tc in above equation.

and get efficiency.