$($b$)$ A liquid phase is in equilibrium with a vapor phase. The liquid has $5$ mole percent methanol, and the mixture is $2n[/10$ mark$]$

i$.$ What is the composition of the vapor $($mole fraction methanol$)?[/1$ mark$]$

ii$.$ What is the temperature of the vapour? $[/1$ mark$]$

iii. What is the ratio of moles of the two co$-$existing phases $($liquid$/$vapour$)?[/4$ mark$]$

SSE ENGG $212($W$24)$ Worksheet# $3$ Do not post online

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