At 35°C, the vapour pressure of CS2 is 512 mm Hg and that of acetone is 344 mm Hg. A solution of CS2 in acetone has a total vapour pressure of 600 mm Hg. The false statement amongst the following is:

Engineering

Chemistry

Raoult Law and Vapour Pressure

Question

At 35°C, the vapour pressure of CS₂ is 512 mm Hg and that of acetone is 344 mm Hg. A solution of CS₂ in acetone has a total vapour pressure of 600 mm Hg. The false statement amongst the following is:

a mixture of 100 mL CS₂ and 100 mL acetone has a volume < 200 mL

Raoult's law is not obeyed by this system

CS₂ and acetone are less attracted to each other than to themselves.

heat must be absorbed in order to produce the solution at 35°C

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Above mixture of liquids show positive deviation from Raoult's Law