A freezer has coefficient of performance 9 .When 200 kcal of work is done on freezer, what mass of water at `0^@`C is converted into ice cubes at `0^(@)`C? `L_(f)`=80cal/g

Refrigerator is an apparatus which takes heat from a cold body, work is done on it and the work done together with the heat absorbed is rejected to the source. An ideal refrigerator can be regarded as Carnot's ideal heat engine working in the reverse direction. The coefficient of performance of refrigerator is defined as beta = ("Heat extracted from cold reservoir")/("work done on working substance") = (Q_(2))/(W) = (Q_(2))/(Q_(1)- Q_(2)) = (T_(2))/(T_(1) - T_(2)) A Carnot's refrigerator takes heat from water at 0^(@)C and discards it to a room temperature at 27^(@)C . 1 Kg of water at 0^(@)C is to be changed into ice at 0^(@)C. (L_(ice) = 80"kcal//kg") What is the work done by the refrigerator in this process ( 1 "cal" = 4.2 "joule" )

Refrigerator is an apparatus which takes heat from a cold body, work is done on it and the work done together with the heat absorbed is rejected to the source. An ideal refrigerator can be regarded as Carnot's ideal heat engine working in the reverse direction. The coefficient of performance of refrigerator is defined as beta = ("Heat extracted from cold reservoir")/("work done on working substance") = (Q_(2))/(W) = (Q_(2))/(Q_(1)- Q_(2)) = (T_(2))/(T_(1) - T_(2)) A Carnot's refrigerator takes heat from water at 0^(@)C and discards it to a room temperature at 27^(@)C . 1 Kg of water at 0^(@)C is to be changed into ice at 0^(@)C. (L_(ice) = 80"kcal//kg") What is the coefficient of performance of the machine?

The coefficient of performance of a Carnot refrigerator working between 30^(@)C & 0^(@)C is

Refrigerator is an apparatus which takes heat from a cold body, work is done on it and the work done together with the heat absorbed is rejected to the source. An ideal refrigerator can be regarded as Carnot's ideal heat engine working in the reverse direction. The coefficient of performance of refrigerator is defined as beta = ("Heat extracted from cold reservoir")/("work done on working substance") = (Q_(2))/(W) = (Q_(2))/(Q_(1)- Q_(2)) = (T_(2))/(T_(1) - T_(2)) A Carnot's refrigerator takes heat from water at 0^(@)C and discards it to a room temperature at 27^(@)C . 1 Kg of water at 0^(@)C is to be changed into ice at 0^(@)C. (L_(ice) = 80"kcal//kg") How many calories of heat are discarded to the room?

A carnot refrigerator absorbs heat from water at 0^(@)C and gives it to a room at 27^(@)C. Find the work done by the refrigerator and the coefficient of performance of the machine when it changes 2 kg of water at 0^(@)C to ice at 0^(@)C. Specific latent heat of ice =333 xx 10^(3) Jkg ^(-1)?

A carbot freezer takes heat from water at 0^(@)C inside it and rejects it to the room at a temperature of 27^(@)C . The latent heat of ice is 336xx10^(3)Jkg^(-1) . If 5kg of water at 0^(@)C is converted into ice at 0^(@)C by the freezer, then the energy consumed by the freezer is close to :

Work done in converting 1 g of ice at -10^@C into steam at 100^@C is

What is the resulting temperature when 150 g of ice at 0^(@)C mixed with 300 g of water at 50^(@)C ?

Calculate the entropy change (DeltaS) when 1 mol of ice at 0^(@)C is converted into water at 0^(@)C . Heat of fusion of ice at 0^(@)C is 1436 cal per mol.

An ideal refrigerator has a freezer at a temperature of -13^(@)C . The coefficient of performance of the engine is 5 . The temperature of the air (to which heat is rejected) will be