Two liquids X and Y from an ideal solution at`300K`, Vapour pressure of the Solution containing `1`mol of X and `3`mol of Y is `550`mmHg . At the same temperature, if `1` mol of Y is further added to this solution ,vapour pressur of the solutions increases by `100`mmHg Vapour pressure (in mmHg) of X and Y in their pure states will be,respectivelyA. `300` and 400`B. `400` and `600`C. `500` and `600`D. `200` and `300`

Two liquids X and Y from an ideal solution at`300K`, Vapour pressure o

1.	Two liquids X and Y from an ideal solution at`300K`, Vapour pressure of the Solution containing `1`mol of X and `3`mol of Y is `550`mmHg . At the same temperature, if `1` mol of Y is further added to this solution ,vapour pressur of the solutions increases by `100`mmHg Vapour pressure (in mmHg) of X and Y in their pure states will be,respectivelyA. `300` and 400`B. `400` and `600`C. `500` and `600`D. `200` and `300`
Answer» Correct Answer - B `P_("total")=P_(A)^(@)x_(A)+P_(B)^(@)x_(A)` `760=520x_(A)+1000(1-x_(A))` `760=520x_(A)+1000-1000x_(A)` `x_(A)=0.5` mol `%=50%`

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