In a refrigerator , heat from inside at 227 K is transferred to a room at 300 K . How many joules of heat shall be delivered to the room for each joule of electrical energy consumed ideally ?

The temperature inside a refrigerator is t_2 °C and the room temperature is t_1 °C. The amount of heat delivered to the room for each joule of electrical energy consumed ideally will be

A Carnot refrigerator absorbs heat from water at O °C and gives it to a room at 27 °C. When it converts 2 kg of water at 0°C into ice. at 0°C, the work.done is (Latent heat of fusion of ice= 333 x 10^3Jkg^(-1) )

A refrigerator takes 500 calorie heat at the temperature 260 K. At 300 K, the heat rejected will 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

A Carnot engine receives 2.0 kj of heat from a reservoir at 500 K, does some work, and rejects some heat to a reservoir at 350 K. How much work does it do?

In a refrigerator one removes heat from a lower temperature and deposites to the surroundings at a higher temperature. In the process, mechanical work has to be done , which is provided by an electric motor. If the motor is of 1kW power , and heat is transferred from -3 ^@C to 27^@C , find the heat taken out of the refrigerator per second assuming its efficiency is 50% of a perfect engine.

294 joules of heat is requied to rise the temperature of 2 mole of an ideal gas at constant pressure from 30^(@)C to 35^(@)C . The amount of heat required to rise the temperature of the same gas through the same range of temperature at constant volume (R=8.3 "Joules/mole"-K) is

A refrigerator has to transfer an average of 263 J of heat per second from temperature (-10)^@C to 25^@C . Calculate the average power consumed assuming ideal reversible cycle and no other losses.

A Carnot engine receives 2.0 kj of heat from a reservoir at 500 K, does some work, and rejects some heat to a reservoir at 351 K. How much heat is rejected.

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 How much heat is rejectd ?