Question

A plot of p1 or p2 vs the mole fractions x1 & x2 is given below .In this figure, lines 1 & 2 pass through the point for which *




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Answer 1

Answer:

b ....X1 =X2 not equal to 1

Answer 2

The graph represents the Roult's law i.e., for a volatile liquid the partial pressure is directly proportional to the mole fraction.

Explanation:

• The figure is representing the Roult's law for a mixture of volatile liquids 1 and 2.
• It states that a solution of volatile liquids, mole fraction ∝ partial pressure.
• The total mole fraction of the liquids is 1. The mole fraction of invidual liquids is less than 1 and greater than 0.
• In the figure as the mole fraction of liquid 2 is increasing, the partial pressure is also increasing, and the partial pressure of liquid 1 is decreasing.
• Line 1 represents the decrease in partial pressure as the mole fraction of liquid 2 increases.