Temperature of cold reservoir was 324K and heat given by hot reservoir was 300J and heat given to the sink was 180J. Find the temeprature of hot reservoir.

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 heat engine operates between a cold reservoir at temperature T_2=300K and a hot reservoir at temperature T_1 . It takes 200 J of heat from the hot reservoir and delivers 120 J of heat from the hot reservoir and delivers 120 J of heat to the cold reservoir in a cycle. What could be the minimum temperature of the hot reservoir?

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?

A heat engine operates between a cold reservoir at tempreture T_(2)=300 K and a hot reservior at tempreture T_(1) . It takes 200 J of heat from the hot reservior and delivers 120 J of heat to the cold reservior in a cycle. What could be the minimum tempreture of the hot reservior ?

In Carnot engine, efficiency is 40% at hot reservoir temperature T. For efficiency 50% , what will be the temperature of hot reservoir?

In a Carnot engine , the temperature of the reservoir is 927^@C and that of sink is 127^@C . If the work done by the engine when it transfers heat from the reservoir to sink is 12.6xx10^6 J . the quantity of heat absorbed by the engine from the reservoir is