Since a refrigerator is a heat engine that operates in the reverse direction i.e. it extracts heat from a cold body and transforms it to hot body. Since it exhaust more heat into room than it extracts from it. Therefore, the net effect is an increase in temperature of the room.
Since a refrigerator is a heat engine that operates in the reverse direction i.e. it extracts heat from a cold body and transforms it to hot body. Since it exhaust more heat into room than it extracts from it. Therefore, the net effect is an increase in temperature of the room.
(b) The temperature of milk falls off exponentially with time.
(c) While cooling, there is a flow of heat from milk to the surrounding as well as from surrounding to the...
The refrigerator draws some heat from the air in front of it. The compressor has to do some
Mechanical work to draw heat from the air at lower temperature. The heat...
It is easier to open a door by applying the force at the free end of it because larger the perpendicular distance, less is the force needed to turn the...
Warm temperate region :
1. It extends from 30° N to 45° N latitudes in each hemisphere.
2. It includes the Mediterranean type, tropical desert type and monsoon type climatic region.
Cool temperate...
