Question

Which of the following sets of conditions favors maximum solubility of solute in solvent?

	A.	The intermolecular forces between solute and solvent molecules are much stronger than the intermolecular forces between solute molecules, but much weaker than the intermolecular forces between solvent molecules.
	B.	The intermolecular forces between solute and solvent molecules are much stronger than the intermolecular forces between solute molecules or the intermolecular forces between solvent molecules.
	C.	The intermolecular forces between solute and solvent molecules are much weaker than the intermolecular forces between solute molecules or the intermolecular forces between solvent molecules.
	D.	The intermolecular forces between solute and solvent molecules are much stronger than the intermolecular forces between solvent molecules, but much weaker than the intermolecular forces between solute molecules.
	E.	The intermolecular forces between solute and solvent molecules are much weaker than the intermolecular forces between solute molecules, but much stronger than the intermolecular forces between solvent molecules.

Answer 1

The maximum solubility of solute in solvent will be in conditions stated in option (B).

(B) The intermolecular forces between solute and solvent molecules are much stronger than the intermolecular forces between solute molecules or the intermolecular forces between solvent molecules.

For solute to dissolve in solvent the solute-solvent attractives forces should overcome the intermolecular forces of attraction between solute-solute and solvent-solvent molecules.