The heat engine would operate by taking heat at a particular temperature and

A heat enegine works on a carnot cycle with a heat sink at a temperature of 2700K . The efficiency of the engine 10% . Determine the temperature of heat source.

Three Carnot engines operate in series between a heat source at a temperature T_(1) and a heat sink at temperature T_(4) (see figure). There are two other reservoirs at temperature T_(2) and T_(3) , as shown, with T_(1)gtT_(2)gtT_(3)gtT_(4) . The three engines are equally efficient if :

Three Carnot engines operate in series between a heat source at a temperature T_(1) and a heat sink at temperature T_(4) (see figure). There are two other reservoirs at temperature T_(2) and T_(3) , as shown, with T_(1)gtT_(2)gtT_(3)gtT_(4) . The three engines are equally efficient if :

A heat engine operates between a cold reservoir at temperature T_(2)=400 K and a hot reservoir at temperature T . It takes 300 J of heat from the hot reservoir and delivers 240 J of heat to the cold reservoir in a cycle. The minimum temperature of the hot reservoir has to be _____________ K.

A carnot engine operates between two reservoirs of temperature "900K" and "300K" .The engine performs "1200J" of work per cycle.The heat energy (in joules) delivered by the engine to the low temperature reservoir,in a cycle is

A scientist says that the efficiency of his heat engine which operates at source temperature 127^(@)C and sink temperature 27^(@)C is 26% , then