5.(1) Ethanol-water mixture forms an azeotrope boiling at 351.4K under a pressure of 101.3 kPa and its composition is 89.4%(mol) ethanol. The vapour pressures of ethanol and water at 351.4K are 100kPa and 44kPa respectively. Using van Laar method and assuming that the ratio of vapour pressures remains constant calculate the composition of the vapour in equilibrium with a liquid containing 80% ethanol (2) Two liquids P and Q form an azeotrope containing 58%(mol)P at 101.3kPa pressure. At the azeotropic temperature the vapour pressures of P and Q are 200kPa,125.3kPa respectively. Construct the equilibrium (yx) diagram. List all the assumptions made