To increase the efficiency of a carnot engine, will you prefer to (i) increase the temp. of source by`10K` or (ii) decrease the temp. of sink by `10K`?

Efficiency of carnot heat engine,if source temperature is T1K and sink temperature is T2K

Efficiency of a carnot engine is 0.4 , when temp. of sink is 300K . What is temp. of source? If temp. of source is kept same and that of sink is lowered by 50^(@)C , what would be the efficiency?

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 efficiency of a carnot engine is (1)/(6) . If the temperature of the sink is reduced by 62 K, the efficiency becomes (1)/(3) . The temperature of the source and the sink in the first case are respectively.

A perfect carnot engine has source temp. 227^(@)C and sink temp. 127^(@)C . Find the efficiency of the engine, If 10000J of external work is to be done, find heat received from source and heat released to the sink.

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.

The efficiency of a carnot engine is 40%, whose sink is at a temperature of 300 K. By how much should be temperature of the source be increased be get an efficiency of 60% ?