There are two Carnot engines A and B operating in two different temperature regions. For Engine A the temperatures of the two reservoirs are 150^(@)C and 100^(@)C. For engine B the temperatures of the reservoirs are 350^(@)C and 300^(@)C. Which engine has lesser efficiency?

There are two Carnot engines A and B operating in two different temper

1.	There are two Carnot engines A and B operating in two different temperature regions. For Engine A the temperatures of the two reservoirs are 150^(@)C and 100^(@)C. For engine B the temperatures of the reservoirs are 350^(@)C and 300^(@)C. Which engine has lesser efficiency?
Answer» Solution :The EFFICIENCY for engine `A=1-(373)/(423)=0.11`. Engine A has `11%` efficiency The efficiency for engine `B=1-(573)/(623)=0.08`. Engine B has only `8%` efficiency