22. An ideal solution was obtained by mixing methanol andethanol. If t

1.	22. An ideal solution was obtained by mixing methanol andethanol. If the partial vapour pressure of methanol andethanol are 2.619 K Pa and 4.556 K Pa respectivelythe composition of vapour (in terms of mole fraction)will be(1) 0.635 MeOH, 0.365 EtOH(2) 0.365 MeOH, 0.635 EtOH(3) 0.574 MeOH, 0.326 EtOH(4) 0.173 MeOH, 0.827 EtOH
Answer» 2 : 0.365Methanol 0.635Ethanol. Steps:1) Find Total vapour pressure of solution by adding partial vapour pressures. P(T) = 2.619+4.556= 7.175 2)We know that, X(Methanol) = Partial Pressure (Methanol) / P(T)= 2.619/7.175 = 0.365 3) Similarly, X(Ethanol) = 4.556/7.175 = 0.634 Therefore, composition of Methanol and Ethanol (Mole fraction) is 0.365 and 0.634 respectively.

22. An ideal solution was obtained by mixing methanol andethanol. If the partial vapour pressure of methanol andethanol are 2.619 K Pa and 4.556 K Pa respectivelythe composition of vapour (in terms of mole fraction)will be(1) 0.635 MeOH, 0.365 EtOH(2) 0.365 MeOH, 0.635 EtOH(3) 0.574 MeOH, 0.326 EtOH(4) 0.173 MeOH, 0.827 EtOH

Answer»

2 : 0.365Methanol 0.635Ethanol.

Steps:1) Find Total vapour pressure of solution by adding partial vapour pressures. P(T) = 2.619+4.556= 7.175

2)We know that,

X(Methanol) = Partial Pressure (Methanol) / P(T)= 2.619/7.175 = 0.365

3) Similarly, X(Ethanol) = 4.556/7.175 = 0.634

Therefore, composition of Methanol and Ethanol (Mole fraction) is 0.365 and 0.634 respectively.