If the co - efficient of performance of a refrigerator is 5 and operates at the room temperature `(27^@C`)`, find the temperature inside the refrigerator.

The cofficient of performance of a refrigerator is 5. If the temperature inside freezer is -20^(@)C , the temperature of the surroundings to which it rejects heat is :

If the room temperature is 20 °C then the temperature on Fahrenheit scale is

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

A refrigerator has a coefficient of performance 9. If the surrounding temperature is 27^@C , the minimum temperature it can cool a body inside is

If the temperature in a room is 20^@C , what s its temperature in degree Fahrenheit?

A scientist says that the efficiency of his heat engine which operates at source temperature 127^(@)C and sink temperature 27^(@)C is 26% , then

If a body cools from 80^@C to 50^@ C at room temperature of 25^@ C in 30 minutes.Find the temperature of the body after 1 hour.

Efficiency of a Carnot cycle is 75% .If temperature of the hot reservoir is 727^@C , calculate the temperature of the cold reservoir.

Average room temperature on a normal day is 27^@ C.What isthe room temperature in ^@F ?