Question

Assignment
II. Answer the
following :
1) What is the effect of temperature
a) KNO3
the solubility &​

Answer 1

Answer:

The solubility of KNO3 in water increases with the increase in temperature since dissolution of KNO3 in water is an endothermic process. The solubility of CaSO4 in water decreases with the increase in temperature since dissolution of CaSO4 in water is an exothermic process.

Answer 2

The effects of temperature on the solubility of solids depend on the endothermic and exothermic reaction. In endothermic reaction more of the solid is dissociated while in exothermic reaction less of solid is dissociated. Dissolution of KNO3 and CaSO4 in water are endothermic and exothermic respectively.