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Evaporation rate depends on the temperature of the liquid, how tightly the liquid molecules bond to each other, the surface area of the liquid, and the temperature, pressure, and air movements in the surroundings into which evaporation occurs.
The warmer the liquid, the faster the evaporation rate. The stronger the molecules bond to each other, the slower the evaporation rate. The larger the exposed surface, the faster the evaporation rate. The colder the surroundings, the faster the evaporation rate. The lower the atmospheric pressure above the liquid, the faster the evaporation rate. The faster the air above the liquid moves, the faster the evaporation rate.
(DrStrong) The answer is yes, it does. Dissolved salt in water will lower the solution's vapor pressure according to Henry's Law. Evaporation rate is proportional to the difference in vapor pressure of the solution and the vapor pressure of the bulk gas phase over the water surface. I agree with the above answer as well except that the coldness of the surroundings is not a direct factor in determining the evaporation rate.
Wiki User
∙ 14y ago
Wiki User
∙ 14y agoSalt actually helps the water to boil more easily (so yeah, in a way the salt helps water to evaporate).
Basically, pure water (or mostly pure) is a homogenous substance and there's not enough freedom of movement to allow convection to start. So, it takes a long time to heat up. By introducing impurities (like salt) the tension between molecules is cut down and so convection starts more quickly, the pot heats faster and reaches a boiling point faster.
The salt also acts as an anchor for bubbles to form. If you were to take a bottle of water, seal it and heat it up, you wouldn't get any bubbles at all (DON'T Do this, its VERY dangerous), but when the salt bonds with the water molecules, it creates space for gas bubbles to form. These bubbles then break-up the water tension and again aid in heating faster.
Wiki User
∙ 8y agoSalt water has a higher boiling point so salt water requires more heat to evaporate.
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Will salt help water evaporate faster?
It is not correct.
How would you remove water from a solution of salt and water?
Heating it would evaporate the water
Does water evaporate faster than water without salt?
Salt water will evaporate faster.
How does boiled salt water help the world?
Boiling salt water produces two things: drinkable water from the vapor, and salt, an essential element.
Will salt water tap water or pond water evaporate first?
Salt water will evaporate first. Salt takes up space so to speak and there's less "water" to evaporate and so it seems to evaporate faster.
Is water more likely to evaporate with salt or with chemicals?
Water is water. It will evaporate no matter what is it. The real question is whether or not the chemicals or salt will evaporate with the water or not. The answer to that is no. The salt/chemicals will stay in the container.
What happens to the salt when boiled?
When saltwater is boiled, the water in it evaporates. If the water is boiled long enough, all the water in the saltwater will evaporate; leaving all the salt in the water at the bottom of the pot. If you can catch the evaporated water with a clear plastic then drain it, that is how they make fresh water from salt water.
How we separate salt from salt water?
Evaporate the water.
Why you able to separate the salt from the salt water solution?
Dont get me wrong, but you seem to be asking how to separate salt from water. I think if you evaporate water, the salt cannot evaporate, and it stays behind. However, if the light is really hot, it will evaporate the salt along with the water. (Example: If you put salt and water in a dish and hold it on top of a lit candle, the light is hot enough to evaporate water, but not hot enough to evaporate salt.
Which dissolves faster salt or water in boiled water?
Boiled water.
Will water with salt evaporate faster then water without salt?
no
Will salt evaporate out of saltwater?
Water is evaporated from the salt water.
