please answer both questions

(6) Ethanol (lybenzone (2) system form an azeotrope with 44.mol% ethanol with a bboiling point of 68.24C 760Tort. The saturation pressures of ethanal (I) and benzene (2) x 66.2C are 506Tarr and 517 Tart respectively. Estimate the Van Laar constants for the system and evaluate the activity coefficients for a solution containing 1 Omol% of ethanol. Given Iny , . (a) 1201 SECTION B: ANSWER ANY TWO QUESTIONS QUESTION 1 (1) Estimate the activity coefficients for the ethanokt) benzene (2) system at 307K and x=0,4 using the UNIQUAC method Given the following equations: 241.22873) WiW- molk Page 2 of 4 TCE 2104 Mat 2799.5827 molk Z In{ = in most aimonth - 24 + PI : x Iny? = 9:[1 - (in ; 0,7;.) - S, Ex Tijon? 1 w Molecule Ethanol(1) Name CH CHE OH ACH R. 1 1 1 5 0.9011 06744 1 0.5313 0,848 0.54 1.2 0.4 1251 Benzene