If the temperature of the sinkis decreased, then the efficiency of heat engine

If the temperature of a source increases, then the efficiency of a heat engine

A Carnot engine converts one-sixth of the heat into work. When the temperature of the sink is reduced by 62°C, the efficiency of the engine is doubled. The temperature of the source and sink are

What is the efficiency of a heat engine ?

A reversible engine converts one - sixth of the heat suplied into work . When the temperature of the sink is reduced by 62^@C , the efficiency of the engine is doubled . The temperatures of the source and sink are

A reversible engine converts one-sixth of the heat input into work. When the temperature of the sink is reduced by 62^@C , the efficiency of the engine is doubled. The temperatures of the source and sink are

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.

What is the thermal efficiency of a heat engine?

Define thermal efficiency of a heat engine.