Raoult's law is used to calculate the partial pressures of the vapour phases of volatile components of a solution
Given that there are two components, A and B, in the liquid-liquid solution, there are three types of intermolecular forces of attraction, A-A, A-B and B-B
A non-ideal solution disobeys Raoult's law
If A-B is lesser than A-A and B-B, the molecules of the components find it easier to escape the liquid phase. Thus, there is higher partial pressure than that predicted by Raoult's law. The solution is said to exhibit positive deviation
If A-B is higher than A-A and B-B, the solution exhibits negative deviation
Are there solutions in which A-B is greater than A-A but less than B-B? Would component A exhibit negative deviation, and component B exhibit positive deviation, in the same solution?
Can the magnitudes of these deviations cancel out each other such that the total partial pressure of the solution is still linear (with respect to change in more fractions of the components)? Can the overall solution obey Raoult's law even when the components don't?