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Solution


Q.

Two liquids A and B form an ideal solution at temperature T K. At T K, the vapour pressures of pure A and B are 55 and 15 kN m-2 respectively. What is the mole fraction of A in solution of A and B in equilibrium with a vapour in which the mole fraction of A is 0.8           [2026]
1 0.5217  
2 0.340  
3 0.663  
4 0.480  

Ans.

(1)