Define evaporation name the factor affecting it why evaporation causes cooling? now is different from boiling?
Answers
Answer:
The change from liquid state to vapour state at all temperatures from the surface of the liquid is called evaporation.The factors affecting evaporation are :- temperature, area of the substance, nature of the substance, flow of air above the substance, presence of moisture. theheat needed for the substance to get evaporated is taken and thus it produces a cooling effect. Boiling happens at a fixed temperature.PLZ MARK THIS AS BRAINLEAST ANSWER.
Answer:
evaporation is the process of changing the state from liquid to gas this process is known as evaporation
the factors affecting the evaporation are..
1surface area... increase in surface area increase the amount of evaporation
2wind... more would be the wind more would be the evaporation
3humidity...humidity means amount of water vapours present in the air. humidity is inversely Propotional to the rate of evaporation. more would be the humidity lesser would be the evaporation nd if less humidity then more evaporation
..... evaporation causes cooling effect bcoz during evaporation the water droplets present on the surface gain heat energy and gets evaporate leaving cooling effect behind
it's is different from boiling as in boiling water starts changing its state of matter from liquid to gas at 100% celsius but in evaporation it evaporate nd it's is a exothermic rxn whereas boiling is endothermic reaction.....
evaporation is a surface phenomenon nd boiling is a bulk phenomenon