Two ideal Carnot engines operate in cascade (all heat given up by one engine is usedby 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?

Two ideal Carnot engines operate in cascade (all heat given up by one

1.	Two ideal Carnot engines operate in cascade (all heat given up by one engine is usedby 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?
Answer» `T=(2T_(1)T_(2))/(T_(1)+T_(2))` `T=(T_(1)+T_(2))/(2)` `T=sqrt(T_(1)T_(2))` `T=0` ANSWER :B

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