Why is rainwater not salty? After all clouds are formed by water evaporating from the oceans?

Answer 1

Salt doesn't evaporate. When water evaporates from the oceans it is only the water that evaporates, not the salt. That is why many inland seas and salt lakes are extra salty--when the water evaporates the salt remains and they are not large enough to make up for it in solution with a huge ocean that has millions of gallons of water flowing into it from all over the world.

Answer 2

Just evaporation is the reason. Evaporation in other words is a distillation that leaves everything in the original solution but the dissolvent, in our case the clean water. In the process of distillation dissolvents leave the solution in the sequence of their boiling temperature: the one with lowest temperature leaves first, then the second lowest follows and so forth. This is how in the early days gas, kerosene and other fuels were produced from petrol (now other methods are employed). Ocean water consists only water as a dissolvent. At very high temperatures even salts become liquid and, as such, form a solution (ocean water contains mainly sodium, potassium and magnesium chlorides) so distillation could be carried on to separate these from each other, but no sunny day reaches that temperature.

Answer 3

Only the water from the sea evaporates, not the salt that is dissolved in it. These remain in the sea.

Try pouring some salt water onto a table and wait for the water to evaporate. When the table is dry, you will find that salt particles are left on the table.

Similarly, after we perspire in the hot summer sun, sometimes, we discover that although the perspiration has evaporated and our shirts are dry, a layer of salty deposit is left on our shirt. This is expecially obvious if the shirt is black.

Answer 4

Of course. Clouds r formed by evaporation of ocean waters. But the fact is that during evaporation only the water vapourizes and not the salt along wid it.
This can be proved by an experiment.Dissolve salt in water and heat in a dish. water evaporates leaving behind crystals of salt.

Answer 5

Only the water evaporates. The salt can't; it stays in the ocean. That's what makes the ocean salty in the first place. It's all the stuff that rivers brought in that can't go anywhere else.

Answer 6

Hi >
I agree with all your answers - if you have ever bought a tub of sea salt, well it comes from the fact that the good old H2O evaporates into the atmos, leaving behind the splendid salt crystals for cooking, stuff, etc.
It really is as simple as that.
Although in a bit of a high turbulence situation, I did have small salt crystals appear on the boat roof after a rainstorm.
Useless, but interesting things.
Bob.

Answer 7

Because the salt does not evaporate. Only the water leaves the ocean leaving the salt. Salt is too big and too heavy to evaporate.

Answer 8

while water evaporates form the oceans it would not take the salt with it. it is left interior the the rest water. If the sea gets too plenty salt content textile in it the salt crystallises, sinks and collects on the sea mattress - subsequently rock salt is shaped!

Answer 9

Hello,

Rain water isnt salty because the sodium choride is lost or left behined during the evapouration process.

The salt remains in the sea as a consiquence of the evapouration process, I also suspect that salt is more dense i.e. heavier that plain H2O so thats another reason it doesnt get into rainwater.

IR

Answer 10

The salt is left behind in the process of evaporation.