What happens to the air pressure of tires on a hot day?

When the temperature outside the tire changes, it will affect the pressure inside thetire. In the fall, the colder weather will significantly lower your tire pressure. ... Mosttires can handle higher pressures resulting from driving and in hot weather, provided they were set at the "correct" pressure when cold

The term used to describe the solution is SATURATION via increased solubility.

Explanation:

When a solute is mixed with a solvent, depending on the degrees of solubility of the solute, saturation takes place. Generally, the solubility of solids in water/liquids increases by increasing the temperature of the mixture.

When this occurs, a saturated, unsaturated or super saturated solution may be formed.  

In this case, a saturated solution is formed: which is a solution where no more solute crystals can be dissolved in the solution, leaving undissolved solids at the bottom of the container.