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Evaporation and boiling are the same process, liquid water is converted to water vapour.
To convert from liquid to gas the water molecules have to absorb heat. The rapidly the heat is supplied, the faster the liquid water changes to a gas.
In evaporation this heat comes from the air the water is exposed to, the surface the water sits on and the heat already in the water (hot water cools as it evaporates). This process is relatively slow compared to boiling water where a lot of heat is being put into the system by the stove or hot plate.
It takes the same amount of heat to boil or evaporate the same amount of water. Boiling provides this heat much more quickly.
Therefore boiling water evaporates much more quickly.
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∙ 15y ago
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On the Celsius scale at what temperature does water evaporate?
It will evaporate at any temperature, as long as the humidity is less than 100%. It does evaporate much faster at higher temperatures though. Technically the boiling point of pure water is 100 degrees C, so that is the temperature at which it becomes gas.
Why do liquids evaporate even if they are not at their boiling point?
The temp (e.g. boiling point) is but the average of the kinetic energy of all the molecules, some will be going faster (have more energy) than others. The ones that exceed that value we know as boiling point have enough energy to escape from the liquid state and become vapor.
Does chlorine have a higher boiling point than iodine?
iodine is having higher boiling point
Will LiCl have a higher boiling point than water?
boiling point:1382 C Melting point: 605 C
Ethanol c2h5oh and methyl ether ch3och3 have the same molar mass.W hich has a higher boiling point?
ethanol has a higher boiling point- of 78°C :)
Does petrol or spirit evaporate faster?
Petrol evaporates faster than water at room temperature. this is because the boiling point of petrol is 95oC and water's boiling point is 100oC. As the boiling point of water is higher than that of petrol, petrol evaporates faster as it achieves its boiling point before water does.
Why is water not an ideal fluid to use in a heat engine?
Because water has a boiling point of 212 degrease Wich will sooner or later evaporate, where antifreaze has a higher boiling point therfore it will not evaporate
Does hydrazine evaporate?
Not easily, because its boiling point 114 celsius is higher than water.
Can you evaporate sea water without boiling?
Yes. Evaporation happens just about all the time, it's just faster at boiling point.
On the Celsius scale at what temperature does water evaporate?
It will evaporate at any temperature, as long as the humidity is less than 100%. It does evaporate much faster at higher temperatures though. Technically the boiling point of pure water is 100 degrees C, so that is the temperature at which it becomes gas.
Does salt evaporate in boiling water?
The boiling point of salt is much much higher than the boiling point of water. So the salt stays behind while the temperature of the water remains at the boiling point of water.
Why must you let a solution evaporate at room temperature in order to get a salt?
The solution does not have to be at room temperature. Depending on what the solution is, the solution must be heated to it's proper boiling point in order for it to evaporate. Everything has a melting, freezing and a boiling point, and the salt's melting and boiling point's are extremely high, therefore the salt will be left behind when the solution is evaporated, unless the solutions boiling point is higher then the salt's boiling point.
What does boiling point?
Boiling point means the temperature a substances starts to boil or evaporate
Does salt water or fresh water evaporate faster?
Fresh water evaporates faster because the dissolved salts in salt water raise the boiling point by strengthening the intermolecular bonds water molecules have with each other. It's why you salt pasta water--to increasing the boiling point of the water so you can cook it at a higher temperature (and season the pasta). Adding salts also lower the freezing point of water, which is why people salt roads before snow.
Why does salt not evaporate with water?
because salt has a much higher boiling point than waters 100 degrees Celsius
What evaporate faster salt water or regular water?
Regular water evaporates faster because salt or any kind of solute (the substance that dissolves) raises the boiling point and lowers the freezing point.
Will water with salt evaporate faster than water with out salt?
No, it will evaporate slower. When salt or another nonvolatile solute is added to water it raises the boiling point, making it more difficult to evaporate.
