Vapour pressures of pure acetone and chloroform at 328 K are 741.8 mm Hg and 632.8 mm Hg respectively. Assuming that they form ideal solution over the entire range of composition, plot p total , p chloroform , and p acetone as a function of x acetone . The experimental data observed for different compositions of mixture is: Indicate whether it has positive deviation or negative deviation from the ideal solution.