When water molecules at the surface gain sufficient energy they can escape in the atmosphere. Evaporation (not vaporization) occur at any temperature; but a higher temperature increase the rate of evaporation. The energy of water molecules increase by a temperature increase.
This is not true.
Yes, it is correct.
it takes 1 hour and 30 minutes for a 1/2 cup of salt to evaporate
If you mean, when will the entire cup evaporate, you are supposed to divide 1 by 1/3.
The salt will dissolve in the water, the water will evaporate and is turned to water vapor(steam) and the salt will be the only one left behind in the cup.
I don't know where you are. - You may well be in a climate where it will never evaporate. Or you could be in central Sahara where it will evaporate in about 8hrs.
It is going to flow, to the ocean If it's only one cup of water, it will probably spread out a bit, maybe run into the gutter or into the grass, soak into the sidewalk or the ground, and then evaporate.
Heating favors the evaporation.
The answer is impossible; many factors affect this evaporation.
Indoor the temperature is higher.
This depends on many factors.
This depends on many factors.