The sink in Carnot's heat engine is at 300k and the engine works at an efficiency 0.4. If the efficiency if the engine is to be increased to 0.5. Find by how many kelvin the temperature if the source should be increased.

A Carnot engine works between 600K and 300K. The efficiency of the engine is

A Carnot engine works between 600K and 300K. The efficiency of the engine is

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 ?

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 ?

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.

A heat engine works between temperatures 300K and 600K .The efficiency of the engine can be ?

The efficiency of a Carnot engine is 50%. The temperature of the heat sink is 27^@C . Find, the temperature of the heat source.

The efficiency of a Carbot's heat engine is 0.25 . If on reducing the temperature of the sink by 50^(@)C , the efficiency increase, 0.35 , then calculate the temperature of the source and sink.