MCQ
In case of osmosis solvent molecules move from
- ✓Higher vapour pressure to lower vapour pressure
- BHigher concentration to lower concentration
- CLower vapour pressure to higher vapour pressure
- DHigher osmotic pressure to lower osmotic pressure
✓
Answer
Correct option: A.
Higher vapour pressure to lower vapour pressure
a
Osmosis is defined as the spontaneous flow of solvent molecules through semipermeable membrane from a pure solvent to a solution or from a dilute to a concentrated solution. If two solutions of unequal concentrations are separated by a semipermeable membrane, the solvent molecules from a solution of lower concentration move towards a solution of higher concentration.
Osmosis is defined as the spontaneous flow of solvent molecules through semipermeable membrane from a pure solvent to a solution or from a dilute to a concentrated solution. If two solutions of unequal concentrations are separated by a semipermeable membrane, the solvent molecules from a solution of lower concentration move towards a solution of higher concentration.
And according to vapour pressure theory; a solvent can pass through a semipermeable membrane because the vapour pressure of the pure solvent is higher than the vapour pressure of the solution and as the solvent moves toward solution,
Thus, higher vapour pressure to lower vapour pressure is the correct answer.
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