Question

(a) Define solubility of a substance. How does it vary with temperature ?
(b) What do you understand by the statement the solubility of copper sulphate in water at 20°C is 20.7 g" ?

Answer 1

Answer:

For many solids dissolved in liquid water, the solubility increases with temperature. The increase in kinetic energy that comes with higher temperatures allows the solvent molecules to more effectively break apart the solute molecules that are held together by intermolecular attractions.

the statement means that at 20 degree celsius, a maximum of 20.7 g copper sulphate can be dissolved in 100 g of water.

Answer 2

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Answer in Attachment...