Let us consider a binary solution of two volatile liquids 'A' and 'B', when taken in a closed container. Both the components would evaporate and an equilibrium would be established between vapour phase and liquid phase. Let the total vapour pressure at this stage be p total and p A and p B are partial pressures of A and B. Mole fractions of these components in liquid solution are x A and x B , that of vapour phase are y A and y B respectively 
& 
are vapour pressure of pure A & pure B.
Column-I | Column-II | Column-III |
(i) Ideal solution | (a) pT = | (P) |
(ii) Non ideal solution (Positive deviation) | (b) | (Q) PT = P°A + P°B |
(iii) Non ideal solution (negative deviation) | (c) Form azeotropic mixture | (R) ΔSsurrounding = +ve |
(iv) Immiscible liquids | (d) solution having vapours of fixed composition | (S) |
(i) For Hexane + Heptane → solution correct set is :
Text Solution
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(i) Hexane + Heptane → ideal solution correct code for ideal solution are → (i) ,(P)
(ii) water + ethanol → non ideal solution with +ve derivation correct code for this solution are
(ii), (iv), b, c, d, S
(iii) water + H 2 SO 4 → non ideal solution with -ve deviation correct codes for this solution are
(iii), iv, b, c, R
(iv) (iv) (Q) is a correct match.
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