What is the coefficient of performance of a refrigerator operating between $30^{\circ}C$ and $0^{\circ}C$?

If the door of a refrigerator is kept open in a room,will it make the room warm or cool?

$A$ household refrigerator with a coefficient of performance $1.2$ removes heat from the refrigerated space at the rate of $60 \ kJ/min$. What would be the cost of running this fridge for one month $(30 \ days)$, assuming it is used for $4 \ hours$ each day and the cost of one electrical unit is $6 \ Rs.$?

The door of a working refrigerator is left open in a well-insulated room. The temperature of the air in the room will

Draw a schematic representation of a refrigerator.

If a refrigerator of coefficient of performance of $5$ has a freezer at a temperature of $-13^{\circ} C$,then the room temperature is (in $^{\circ} C$)