What is the source temperature of the carnot engine reuired to get 70 % efficiency ?

What is the source temperature of the Carnot engine required to get 70% efficiency? Given sink temperature = 27^(@)C

The efficiency of a carnot engine is 40%, whose sink is at a temperature of 300 K. By how much should be temperature of the source be increased be get an efficiency of 60% ?

The temperature of the sink of a carnot engine is 300 K and its efficiency is 40 %. Find the decrease in temperature of the sink required to increase the efficiency of the engine to 50% keeping temperature of the source to be constant.

Source temperature of a carnot engine is 127 celsius if efficiency of carnot engine is 60% then find sink temperature

The efficiency of carnot heat engine is 25%. When the temperature of the source alone is raised by 100K, the efficiency becomes 50%. Find the temperature of the source and the sink.

When the absolute temperature of the source of a Carnot heat engine is increased by 25 %, its efficiency increases by 80%. The new efficiency of the engine is