Question

why a mixture of carbon disulphide and acetone shows a positive deviation from roults law ? what type of azeotrope is formed by this mixture

Answer 1

Explanation: Molecules of ethanol in pure state are hydrogen bonded. ... Because of this mixture of ethanol and acetone shows positive deviation in vapour pressure from Raoult's Law. (b) Mixture of carbon disulphide to the acetone shows positive deviation from Raoult's Law.

Answer 2

Hey dear,

● Explanation -
- Raoult's law states that the mole fraction of the solute component is directly proportional to its partial pressure.
- When carbon disulphide is added to acetone, solute-solvent interactions are weaker than those of solute-solute and solvent-solvent interactions.
- This increases vapour pressure and therefore results in positive deviation from Raoult's law.
- Minimum boiling azetropes are formed by this mixture.

Hope this helps you...