what are the factors that effect solubility ?

Question

rane · Answer

@thomaster

thomaster · Answer

you mean factors that $\sf A$ffect solubility?

rane · Answer

yup

thomaster · Answer

right, that would be temperature, pressure and nature of solvent (polarity)

rane · Answer

can u pls elaborate on these 3 points ?

thomaster · Answer

well for temperature it depends if the reaction is endo- or exothermic
When the reaction is endothermic, it needs energy. The heat of the solvent is in this case used to absorb energy for the reaction. thus increasing the solubility.
When the reaction is exothermic, it gives energy. If the amount of energy in the solvent is already high, it will decrease the solubility.

thomaster · Answer

This only applies for solids dissolving in liquids by the way.

thomaster · Answer

The effect of pressure is only affecting the solubility of gasses in liquids.

If the pressure increases, the solubility of gasses will be increased as well.

rane · Answer

thank you 
i get it now

thomaster · Answer

And for nature of solvent:

Substances with similar intermolecular attractive forces tend to be soluble in one another.
For example: polar solutes are soluble in polar solvents.

rane · Answer

cheerz :)