1.

The vapour pressure of two pure components A and B forming an ideal solution are 100 torr and 80 torr respectively. The total pressure of the solution obtained by mixing 2 mol of A and 3 mol of B is :

Answer»

48 torr
108 torr
88 torr
8 torr

Solution :`P_(A)=100xx2/5=40` MM HG,
`P_(B)=80xx3/5=48` mm Hg
`P_("(TOTAL)")=40+48=88` mm Hg


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