At high temps, more heat is available so more solid will dissolve.
If the atmosphere is higher, the water will melt first, then boil at some higher temp than melting.
So we expect Hg to boil at a higher temp than water.
But then why does it not also freeze at a higher temp?
I believe (guessing here) chefs add the salt in order to achieve a higher temp, so that the food itself will cook faster.
Average temperature is 22 minor temp and 33 high temp.
Expect mostly high temps and high humidity in the south.
That temperature is the highest flex temp that can be used.
One half of the total number of molecules is at a higher temp than the other half.
Do the molecules at the higher temp after a period of time end up at the top of the container?