(i) ∆mix H = zero
(ii) ∆mix V = zero
(iii) These will form a minimum boiling azeotrope.
(iv) These will not form the ideal solution.
Correct Answers:
(iii) These will form a minimum boiling azeotrope.
(iv) These will not form the ideal solution.
Explanation: The intermolecular forces between benzene and toluene molecules can be almost as strong as those of two benzene particles and two toluene molecules separately in a mixture of benzene and toluene. The solution would then be to create an appropriate solution and obey Raoult’s law.