21. If the source of the Carno engine is at 500 K and sink at 300 K. What will be the efficiency of this engine?

If the source and sink of a cannot engine is at 500 K and 300 K, then what will be the percentage change in efficiency if the source temperature is reduced to 450 K.

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

Find the efficiency of a carnot's engine working between 500K and 300K

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.

The efficiency of a Carnot engine working between 800 K and 500 K is -