Question
An ideal solution was obtained by mixing methanol and ethanol. if the partial vapour pressure of methanol and ethanol are 2.619 kPa and 4.556kPa respectively, the composition of the vapour (in term of mole fraction) will be (a) 0.635 methanol,0.365 ethanol (b) 0.365 methanol,0.635 ethanol (c) 0.574 methanol,0.326 ethanol (d) 0.173 methanol,0.827 ethanol