[" A heat engine absorbs heat "Q_(1)" at "],[" temperature "T_(1)" and heat "Q_(2)" at temperature "],[T_(2)." Work done by the engine is "J(Q_(1)+Q_(2))" ."],[" This data "]

A heat engine absorbs heat Q_(1) at temperature T_(1) and Q_(2) at temperature T_(2) . Work done by the engine is (Q_(1)+Q_(1)) . This data:

A heat engine absorbs heat q_(1) from a source at temperature T_(1) and heat q_(2) from a source at temperature T_(2) . Work done is found to be J (q_(1) + q_(2)) . This is in accordance with

A heat engine absorbs heat q_(1) from a source at temperature T_(1) and heat q_(2) from a source at temperature T_(2) . Work done is found to be J (q_(1) + q_(2)) . This is in accordance with

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 :

Two ideal Carnot engines operate in cascade (all heat given up by one engine is used by the other engine to produce work) between temperatures, T_(1) and T_(2) . The temperature of the hot reservoir of the first engine is T_(1) and the temperature of the cold reservoir of the second engine is T_(2) . T is temperature of the sink of first engine which is also the source for the second engine. How is T related to T_(1) and T_(2) , if both the engines perform equal amount of work?