Under what conditions non-ideal solutions show positive deviations?

Under what condition do non-ideal solutions show negative deviations?

Compreshension-II In non-ideal solutions, at one of the intermediate compostions, the total vapour pressure is highest and the boiling point is lowest. At this point, the composition of the liquid and vapour phase is same. So, if liquid mixture vapouriese at this point and vapours are condensed, the condensate contains same compositon as present in original liquid mixture. it means at this point liquid behaves like a pure liquid and is called an Azeotropic mixture. A and B forms non-ideal solution showing positive deviation. Boiling point of pure A and B is 350 K and 380 K respectively. The solution will bpoil at (approximate)

Under what conditions iron reacts with water.

(i) Gas A is more soluble in water than Gas (B) at the same temperature. Which one of the two gases will have the higher value of K_(H) (Henry's constant) and why? (ii) In non-ideal solution, what type of deviation shows the formation of maximum boiling azeotropes ?

How does a non-ideal solution differ from an ideal solution ? When does the positive deviation occur from ideality?

Under what conditions to gases show maximum deviations from ideal gas behaviour ?

Which of the following is correct about a solution showing positive deviation?

Why does a solution of ethanol and cyclohexane shows positive deviations?

A solution is non-ideal when

Which of the following is correct for a non-ideal solution of liquids A and B showing negative deviation?