Observe the given graph and identify the correct statement for the solution.
Answer & explanation
Correct answer: option 1
A plot of p1 or p2 versus the mole fractions x1 and x2 for a solution gives a linear plot. These lines (I and II) pass through the points for which x1 and x2 are equal to unity. Similarly, the plot (line III) of ptotal versus x2 is also linear. The minimum value of ptotal is p01 and the maximum value is p02, assuming that component 1 is less volatile than component 2, i.e., p01 < p02.