A carnot engine has an efficiency of 30% .Its efficiency is to beincreased to 50% .By what must the temperature (in K) of the source be increased if the sink is at 300K ?

A carnot engine has an efficiency of 30% .Its efficiency is to be increased to 50% .By what must the temperature (in K) of the source be increased if the sink is at 300K ?

What should be the temperature of the source to increases the efficiency to 30%

A Carnot's engine operates with an efficiency of 40% with its sink at 27^(@)C . By what amount should the temperature of the source be increased with an aim to increase the efficiency by 10%

A carnot engine has efficiency 1//5 . Efficiency becomes 1//3 when temperature of sink is decreased by 50 K What is the temperature of sink ?

A Carnot's engine has an efficiency of 50 % at sink temperature 50^(@)C .Calculate the temperature of source.

A Carnot cycle has an efficiency of 40% . Its low temperature resrvoir is at 7^(@)C . What is the temperature of source ?

An ideal Carnot's engine whose efficiency 40% receives heat of 500K. If the efficiency is to be 50% then the temperature of sink will be

A carnot engine whose sink is at 290 K has an efficiency of 30%. By how much the temperature of the source be increased to have its efficiency equal to 50%, keeping sink temperature constant

A carnot engine whose sink is at 300 K has an efficiency of 50. by how much should the temperature of source be increased so as the efficiency becomes 70% ?