when water is spread on the surface it gets evaporated inspite of low temperature why?

Answer 1

if water around is frozen, the water that is not frozen is warmer than the air, therefore it evaporates.

Answer 2

The rate of water evaporation is directly proportional to the temperature of the ambient or atmosphere near it. Higher the ambient quicker will be the evaporation.Water will thus get evaporated inspite of low temperature slowly. Even the ice melts at the low temperature. Hence it is no surprise that water evaporates at low temperature.Besides the rate of evaporation is directly proporational to the surface area it occupies. Larger the surfacearea faster will be the evaporation. Because the thickness of film formed by the water over the surface is less hence the speeder the evaporation.

Answer 3

There is wide distribution of the individual velocities (and the respective energies) in the Water molecules' population, called Maxwell Distribution. At any moment of Time, some molecules have kinetic energy higher than the average one (the last is related to the Temperature), so they could escape from the water phase and go into the air. More Spreading leads only to less time needed to evaporate some amount (mass) of water.

Answer 4

It depends on the partial pressure of water in atmospheric air. As long as there is difference between the vapor pressure of water (pure component) and the partial pressure water in air the evaporation takes place.
Ex: There will not be any evaporation in a closed container.
Ex: If it is exposed to air (or any medium) then evaporation takes place.
Ex: This rate of evaporation will be less in rainy season(think why)
Ex: The rate of evaporation is more in winter and summer (think why)

Answer 5

In dry temperate zone, kuhls (wooden water channels) are generally made by making notches at the natural water sources and the water is diverted to the fields for irrigation to different terraces, using the natural gravitational flow of water (Fig. 2.3). Since the topography of the area consists of very high slopes and rocky terrain's, wooden water channels are used at many places as water passes from one place to another. The water channels are built and managed by the villagers with no government assistance. In the lower areas of H.P. bamboo pipes are commonly used as irrigation channels on

Answer 6

i am no scientist ---and i am not sure of the answer but water molecules are in a constant state of agitation even in low tempatures but the rate of agitation is slower and so is the rate of evaporation.
until you freeze the liquid and the agitation is almost completely stopped and then there is no evaporation .

Answer 7

Evapouration of a liquid can take place under normal room tempreture or when heat is supplied. I think water contains latent heat energy which enables it to evapourate.

Answer 8

Because it is absorbed into the surrounding air.