The principle of evaporation of liquid to absorb heat is used in _____.
Refrigerator
Refrigerator is correct.
A liquid needs latent heat to evaporate, and it takes this heat from its surroundings, cooling them. This is why sweat or water on the skin feels cold as it dries.
In a refrigerator the refrigerant liquid evaporates inside the coils of the freezer compartment, absorbing heat from the food chamber; the compressor then condenses the vapour outside and releases that heat through the rear coils.
A microwave oven, geyser and electric kettle all heat things up using electrical energy rather than removing heat by evaporation.
Similar Questions
- What is 'Heat Budget'?
- $-273.15^\circ\text{C}$ temperature is equal to:
Which type of surface absorbs more heat and is therefore preferred during winters?
Freezing point of water is
Rate of heat conduction in solids does not depend on
Which heat transfer method enables the Sun to warm Earth, despite the vast empty space between them?
Thermostat is a device in ovens which helps to maintain a temperature by:
Which process is responsible for the rising of warm air over a heated surface?
Heat generated in an electrical resistor is measured in which SI unit?
When a metal spoon is placed in a hot cup of tea, it soon becomes warm. Which mode of heat transfer is primarily responsible for this?
Important Questions from Heat and Transfer
In summer season, the top and outer surface of the house are painted white because:
On a hot summer afternoon, the tent made up of fabric will be preferred as white colour is:
The coil of wire used in electric heaters is called a/an________.
Transfer of heat by convection can take place in
A body in motion essentially acquires
A. Kinetic energy
B. Potential energy
C. Mechanical energy
D. Heat energy
