Parameters affecting solubility: Considering the relative magnitudes of the enthalpies, If △Hcr>△solvation then△solution>O Heat is absorbed when dissolution occurs and the dissolution is called endothermic If △Hcr<△Hsolvation then△Hsolution<O Heat is produced when dissolution occurs and the dissolution is called exothermic Cs(T1) △solution(Ti-T2) In- Cs(T2) R Ti.T2 If AHsolution 0,solubility will increase when temperature is raised If AHsolution 0.solubility will decrease when temperature is raised