Question

Wet clothes dry in sun Due to:
A.Evaporation
B.Condensation
C.Sublimation
D.Freezing

Answer 1

Hint: We know that an alteration of substance without changing its composition is called physical change. The change in state of a substance is the most common physical change. Example: Melting of an ice cube to form liquid water.

Complete step by step answer:
Some of the properties of physical changes are:
In physical change, the arrangement of molecules takes place while their actual composition remains the same.
Physical change is easily reversible.
In physical change, no formation of new substance is seen.
Physical change is a temporary change.
In physical change no energy is formed.
Physical change affects only physical properties like shape, size extra.
Example: boiling of water, melting of wax.
Evaporation is the process of conversion of liquid phase to vapour phase.
Condensation is the process of conversion of gas phase to liquid phase.
Sublimation is the process of conversion of solid phase to gas phase without going through the liquid state.
Freezing is the process of conversion of liquid phase to solid phase.
Wet clothes dry in the sun due to evaporation. This is because heat energy from the sun is taken by water in wet clothes and it gets evaporated. This process is evaporation.

$\therefore $ Option (A) is correct.

Note:
Warm water evaporates much faster than cool water. So, the heat from the sun dries the clothes quickly.
Note: We have to know that evaporation of molecules of water from the clothes would occur not only in the presence of sunlight, but could even happen if the velocity of the wind is higher, and the atmosphere possesses less content in moisture. When clothes are present in sunlight, and are permitted to dry due to the heat of the sun, the clothes become warmer as a result of which the temperature of water in cloth increases, and because of this increase in temperature, the kinetic energy of the molecules of water also increases. This leads to the evaporation of molecules. The molecules leave into the atmosphere, and thereby the clothes are dried.