Liquid M and liquid N form an ideal solution. The vapour pressures of pure liquids M and N are 450 and 700 m m H g , respectively, at the same temperature. Then correct statements is: ( x M = M o l e

Question

Liquid M and liquid N form an ideal solution. The vapour pressures of pure liquids M and N are 450 and 700 m m H g , respectively, at the same temperature. Then correct statements is: ( x M = M o l e f r a c t i o n o f ' M ' i n s o l u t i o n ; x N = M o l e f r a c t i o n o f ' N ' i n s o l u t i o n ; y M = M o l e f r a c t i o n o f ' M ' i n v a p o u r p h a s e ; y N = M o l e f r a c t i o n o f ' N ' i n v a p o u r p h a s e ; )

TestHub · Accepted Answer

P M o is given as = 450 m m o f H g . P N o is given as = 700 m m o f H g . We know that P M = x M × P M O → Raoult’s law. P N = x N × P N O → Raoult’s law. From Dalton’s law P M = y M × P T P N = y M × P T So, x M × P M o = y M × P T … ( i ) x M × P N o = y N × P T … ( i i ) ( i ) ( ii ) x M x N × P M o P N o = y M y N x M x N = y M y N × 750 450 x M x N > y M y N

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