Question

Which of the following will increase the rate of solubility? Stir the solution while adding the solute O Add the solute to a concentrated solution Decreasing the temperature of the solution O Decreasing the surface area of the solute particles

Answer 1

Rate of solubility :

1. Stir the solution while adding solute :Stirring of  solutiion while adding the solue particles will increase the mechanical energy in the system  therefore intermolecular bonds in the solid particlesand they can be more easily broken by stirring which allows more of the solute particles to be attracted to the solvent particles. So , the rate of solubility will increase.

In a concentrated solution already the solue is dissolved and saturation point is reached. so , with increase in solue concentration will the rate of solubility will not increase.

If the temperature of the solution decreases then the intermolecular bonds will not broken so easily, therefore the rate of solubility will decreases.

Again decreasing the surface tension of solute particle means increasing the size of the solute particle, which will not increase the rate of solubility.

So the Correct answer :Option number (1).