At a constant temperature liquid `\'A\'` has vapour pressure of `170 mm Hg` and liquid `\'B\'
Channel: Doubtnut
Date: 26/01/2020

At a constant temperature liquid `\'A\'` has vapour pressure of `170 mm Hg` and liquid `\'B\'` has vapour pressure of `280 mm Hg`. A solution of the two at the same temperature in which mole fraction of `A` is `0.7` has a total vapour pressure of `376 mm`. Identify whether the solution process is Endothermic or Exothermic ?