In
general, if in a nearly saturated solution, the dissolution process is
endothermic (Dsol H > 0), the solubility should increase with rise in
temperature and if it is exothermic (Dsol H < 0) the solubility should
decrease These trends are also observed experimentally Effect of pressure
Pressure does not have any significant effect on solubility of solids in
liquids It is so because solids and liquids are highly incompressible
and practically remain unaffected by changes in pressure