Thermodynamics Second Law of Thermodynamics and Entropy Performance of Heat Engines and Reversed Heat Engines
A Carnot engine is Operating between source and sink temperatures of T1 and T2 respectively. It has efficiency of 30%. If the sink temperature is reduced by 25°C, then the efficiency is increased to 35%. The source temperature T1 is
1
227°C
2
272°C
3
252°C
4
257°C