1.

Two liquids A and B are mixed temperature T in a certain ratio to form an ideal solution. It is found that the partial pressure of A i.e., p_(A) is equal to p_(B), the vapour pressure of B for the liquid mixture. What is the total vapour pressure of the liquid mixture in terms of p_(A)^(@) and p_(B)^(@) ?

Answer»

<P>`(p_(A)^(@)p_(B)^(@))/(p_(A)^(@) + p_(B)^(@))`
`(2p_(A)^(@)p_(B)^(@))/(p_(A)^(@) + p_(B)^(@))`
`p_(A)^(@)/(p_(A)^(@) + p_(B)^(@))`
`(2p_(B)^(@))/(p_(A)^(@) + p_(B)^(@))`

ANSWER :B


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