Consider a binary solution of two volatile liquid components 1 and 2. x1 and y1 are the mole fractions of component 1 in liquid and vapour phase, respectively. The slope and intercept of the linear pl

Question

Consider a binary solution of two volatile liquid components 1 and 2. x1 and y1 are the mole fractions of component 1 in liquid and vapour phase, respectively. The slope and intercept of the linear plot of x 1 vs y 1 are given respectively as :

(A) 1 2 P P , 2 2 1 P P P
(B) 2 1 P P , 2 2 1 P P P
(C) 2 1 P P , 2 1 2 P P P
(D) 1 2 P P , 2 1 2 P P P

Prashant Kotian · Accepted Answer

Correct answer: C. PT = X1P10 + X2P20 = X1P10 + (1 – X1)P20 PT =   2 0 0 P X P – P  ............. (1) P1 = X1P10 = Y1PT ; 0 1 T Y P X P  ............. (2) | JEE(Main) 2025 | DATE : 23-01-2025 (SHIFT-2) | PAPER-1 | CHEMISTRY PAGE # 5 from (1) & (2) 0 1 Y P X =   2 0 0 P X P – P  Y 1 = 1 2 1 P P – P +         1 2 P P X         2 1 P P Y 1 = 2 2 1 P P – P + X 1 X 1 =         2 1 P P Y 1 + 2 1 2 P P – P Slope = 2 1 P P & intercept = 2 1 2 P P – P

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