A Carnot engine has the same efficiency between `800 K to 500K` to 600K`. The value of x is

A Carnot engine has the same efficiency between 100 k and 500 k .Calculate the temperature T K & 900 K of the sink.

A Carnot engine working between 300 Kand 400 K has 800 J of useful work. The amount of heat energy supplied to the engine from the source is

A Carnot engine, whose efficiency is 40% , takes in heat from a source maintained at a temperature of 500K. It is desired to have an engine of efficiency 60% . Then, the intake temperature for the same exhaust (sink) temperature must be:

A Carnot engine working between 200 Kand 500 K has done work equal to 800 joules. Amount of heat energy supplied to the engine from the source is

The efficiency of a Carnot engine which operates between the two temperatures T_1=500K and T_2=300K is

One of the most efficient engines ever developed operated between 2100 K and 700 K . Its actual efficiency is 40%. What percentage of its maximum possible efficiency in this ?

A Carnot engine whose low temperature reservoir is at 7^@C has an efficiency of 40. It is desired to increase the efficiency to 50% . By how many degree must the temperature of the high temperature reservoir be increased?

A Carnot refrigerator operates between 250^@K and 300^@K . Calculate its coefficient of performance.

A Carnot refrigerator operates between 250^@K and 300^@ K . Calculate its coefficient of performance .

Carnot engine : A carnot engine receives 2.0 KJ of heat from a reservoir at 500 K , does some work, rejects some heat to a reservoir at 350 k What is its efficiency ?