Why does salt water evaporate faster than water without salt?

Answer 1

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.

The presence of a solute of lower or negligible vapor
pressure reduces the vapor pressure and consequently tends to REDUCE the evaporation rate. So, for example, the evaporation rate of water from salt water will be somewhat less than from fresh water (again, other factors being the same).

Answer 2

Salt Water Evaporation Rate

Answer 3

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RE:
Why does salt water evaporate faster than water without salt?

Answer 4

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Since you 'know' that the water from salt water evaporates faster than pure water, you may discount this response, because, all other conditions being equal, the fresh water should evaporate faster. The reason is that the water in the salt water must first free itself of its salt content, and that takes additional energy. Seen in reverse, dissolving salt in water is an exothermic process - heat is released - and that 'debt' has to be paid back to free the water again. That 'affinity' of salt for water is why salt so readily dissolves in water, and also why desalination is so energy-hungry.

Answer 5

The short answer is that the salt "clogs up" evaporation, making it
more difficult for the water molecules to escape from the liquid
because they run into salt molecules. That slows things down a little,
making salt water evaporate slower than fresh water.

Answer 6

it would be more accurate to say that salt water evaporates at a higher temperature than water without salt dissolved in it. the reason this happens is because there is a bond between the water molecules and the salt dissolved in the water. it takes more energy for the water to evaporate because first, this bond must be broken.

Answer 7

the salt does not evaporate, just the pure water. so if a whole glass of salt water evaporates you will be left with salt remains all over the inside of the glass. i highly think that salt shouldnt effect the rate of evaporation

Answer 8

The salty water evaporates faster than water without salt because it has bigger HEAT CAPASITY.