Question

define evaporation. write the factors which effect the evaporation.​

Answer 1

$\huge{\boxed{\mathfrak{\red{\underline{Evaporation}}}}$

★ Evaporation is a type of vaporization of a liquid that occurs from the surface of a liquid into a gaseous phase that is not saturated with the evaporating substance.

★ The other type of vaporization is boiling, which instead occurs within the entire mass of a liquid and can also take place when the vapor phase is saturated, such as when steam is produced in a boiler.

★ Evaporation that occurs directly from the solid phase, as commonly observed with ice or moth crystals is called sublimation.

$\bold{Evaporation\; depends\; on\;4\;factors :-}$

● Increase in temperature.

● Increase in wind speed.

● Decrease in humidity.

● Increase in surface area.

$\large{\mathsf{\underline{Increase\;in\;temperature:-}}}$ With increase in temperature more particles get enough kinetic energy thus evaporation occurs fast.

$\large{\mathsf{\underline{Increase\;in\;wind\;speed:-}}}$ With the increase in speed in particles of water vapour move away with the wind thus reducing water amount in the air.

$\large{\mathsf{\underline{Decrease\;in\;humadity:-}}}$ Humidity is the amount of vapour and the water amount present in the air is high the rate of evaporation decreases.

$\large{\mathsf{\underline{Increase\;in\;surface\;area:-}}}$ Since evaporating is surface phenomenon increase in surface area increases rate of evaporation.  

${\bold{\red{@Aashiq}}}$

Answer 2

when temperature and wind speed are constant, but humidity in creases, the rate of evaporation will decrease. when wind speed and humidity stay constant, and temperature increase,them the rate of evaporation will increase because warmer air can hold more water vapor the colder air.