Anonymous

What Are The Factors That Affect The Rate Of Evaporation?

15 Answers

Anonymous Profile
Anonymous answered
The rate of evaporation will be increased by bigger surface area. The greater the exposed surface, the faster the evaporation. This is because water molecules need to be at the surface of the water to evaporate. With a big surface area more water molecules can be at the surface of the water and therefore more water can evaporate.  In general the overall rate of evaporation will depend on the surface area exposed to the drying effects of the environmental conditions: Temperature, humidity, presence or absence of adjacent air and movement.
Anonymous Profile
Anonymous answered
Rate of Evaporation is affected proportionally by:
1- Temperature (indicator to kinetic energy)
2- Pressure
3- Surface Area

and affected inversely by:  
1- Intermolecular Forces (which affected by matter concentration " dissolved substances as salts and dissolved gases as N2,O2,CO2
2- Humidity
3- Wind

regards..:)
Anonymous Profile
Anonymous answered
Evaporation is an important property of a liquid. There are a lot of factors that affect the rate of evaporation such as humidity, but the two main factors are:
Temperature: Although evaporation occurs at all temperatures, but it has been proved that the increase in temperature increases the rate of evaporation. For this purpose we first need to understand what evaporation is. Evaporation is defined as the escape of high-energy molecules from the surface of the liquid. At a lower energy only a few molecules possess enough energy to escape from the liquid surface by overcoming molecular attractions. However, the increase in temperature increases their kinetic energy, and many more molecules acquire sufficient energy to escape into vapor phase.
Intermolecular forces of the liquid: The rate of evaporation also depends on the nature of the liquid. Thus pentane and ether evaporate quickly than water at room temperature. If the intermolecular forces in a liquid are weak, molecules can escape easily from its surface and the rate of evaporation is high. On the other hand, if intermolecular forces are strong, only those molecules can escape which have sufficiently high energy to overcome intermolecular attraction.
close eyes open them Profile
Factors affecting Evaporation:
Humidity in the air
Surface area Exposed
Temperature
Wind

Factors Affecting Melting:
Melting point of the substance
Temperature

Factors affecting Boiling:
Boiling point of the substance

Temperature

Hope it Helps!!
Anonymous Profile
Anonymous answered
Yes, it does. A larger surface area will increase the rate of evaporation. More molecules will be able to escape the surface of the liquid in a given time, if you increase the surface area.
Anonymous Profile
Anonymous answered
There`s is a lot of reason that affects the boiling or melting point

-Pressure

-Surrounding temperature

-Purity of the substance

There are basically two types of bonding in substances that affect the boiling point. Some compounds are composed of extensive networks of atoms held together by either ionic or covalent bonds. These network substances have very high melting and boiling points. NaCl is an example of an ionic network and SiO2 is an example of a covalent network.

The key factors that affect the boiling points of molecular compounds are the intermolecular forces which attract one molecule to another.

For covalent compounds these intermolecular forces are called van der Waals forces and consist of hydrogen bonding, dipole-dipole attraction, and London dispersion forces. Hydrogen bonding is usually stronger than dipole-dipole interactions. London dispersion forces, often weaker forces, are found between all molecules, even if other van der Waals forces are present.

The boiling point of a solution is also affected by the ambient pressure. Boiling occurs at a temperature where the vapor pressure of the liquid is equal to the ambient pressure.

The third thing that affects the boiling point of a solution is any substance that is dissolved in the liquid. The more particles (ions or molecules) there are dissolved in the solution, the higher the boiling point.
Anonymous Profile
Anonymous answered
A) water
Without water there can be no evaporation, and it was mine water, snow, ice or wet soil, vegetation is produced by evaporation of the basic conditions. In the desert, almost no evaporation.
(B) of the heat source
Evaporation to the heat consumption in the evaporation process without heat supply, evaporation surface will gradually cooling, so that evaporation surface of the lower vapor pressure, evaporation was slow or gradually stop. Therefore largely determined by evaporation rate of heat supply. In fact often the number of direct evaporation amount of heat that the evaporation rate of a place.
(C) saturation deficit
Evaporation rate proportional to the difference with the saturation. The greater the saturation deficit, the faster evaporation rate.
(D) wind speed and turbulent diffusion
Atmospheric water vapor vertical transport and horizontal diffusion can speed up the evaporation rate. No wind, the evaporation of surface water vapor molecular diffusion alone, slowly reduce the vapor pressure, saturation deficit is small, and therefore slow evaporation. The wind, the turbulence enhanced surface evaporation of water vapor with the wind and turbulence quickly spread to the vast space, the surface evaporation of water vapor pressure decreases, saturation deficit increased to speed up evaporation.
Anonymous Profile
Anonymous answered
Yes, because the more surface area, the less water in one area. So the since the water is so spread out, the sunlight and heat can evaporate more water.

Its like a wet towel. If you bundle it up into a pile, it will take longer to dry, but if you spread it out, it drys in less time.
Anonymous Profile
Anonymous answered
Yes. As the temperature rises, the kinetic energy of the molecules rises as well.  This energy will result in more liquid being able to break the surface of said liquid to  a gaseous form.  The other way around, if the temperature lowers, the kinetic energy lowers as well and therefore, less evaporation.
Anonymous Profile
Anonymous answered
The factors that mainly affect the rate of evaporation may be temperature , surface area . Humidity (the amount of water vapour present in air ), pressure on the surface of the liquid and also on the nature of the liquid to be evaporated which further depends on volatility of the liquid present and the amount of the liquid
Anonymous Profile
Anonymous answered
Humidity is the amount of water in the surrounding air. This means that the more water in the air the slower evaporation will be. The less water in the air the faster evaporation will be.
Anonymous Profile
Anonymous answered
I got this from my earth science teacher: Air saturation, wind, surface area, and heat all affect evaporation.
Anonymous Profile
Anonymous answered
Rate of Evaporation is affected proportionally by:
Temperature - Surface Area - Wind
and inversly by:
Pressure- Humidity - Intermolecular Forces
Anonymous Profile
Anonymous answered
Yes, salt does affect the rate of evaporation I just finished my experiment for science fair and I conclude that since salt water is a substance it affects the rate of evaporation.
Anonymous Profile
Anonymous answered
The factors that affect the rate of evaporation are : Wind, air, temperature, environment and also, the discharges of birds. In salt industry, they load shrimps to the evaporation ponds for shrimps are the best food for birds and the discharge of birds increase the evaporation of the sea water in order for the salt to crystallize.

Answer Question

Anonymous