An ideal solution was found to have a vapour pressure of 80 torr when the mole fraction of a non-volatile solute was 0.2. What would be the vapour pressure of the pure solvent at the same temperature?
A
64 torr
B
80 torr
C
100 torr
D
400 torr
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The correct Answer is:
c
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DILUTE SOLUTION
NARENDRA AWASTHI|Exercise Level 1 (Q.62 To Q.91)|1 Videos
Why is the vapour pressure of a solvent lowered on the addition of non-volatile solute into it ?
Derive the relationship between the relative lowering of Vapour pressure and the mole fractions of the non volatile solute
What happens to the vapour pressure of a liquid when a non-volatile solute is added to it
Two liquids X and Y on mixing form an ideal solution. The vapour pressure of the solution containing 3 mol of X and 1 mole of Y is 550 mm of Hg. But when 4 mol of X and 1 mol of Y are mixed, the vapour pressure of the solution thus, formed is 560 mm of Hg. what will be the vapour pressure of the pure X and pure Y at this temperature?
Vapour pessure of a liquid or a solution is the pressure exerted by the vapour in equilibrium with the liquid or solution at a particular temperature. It depends upon the nature of the liquid and temperature. It depends upon the nature of the liquid and temperature. According to Raoult's law in a solution, the vapour pressure of a component at a given temperature is equal to the mole fraction of that component in solution multiplied by the vapour pressure of that component in hte pue state. this solution in which each component obeys Raoult's law are called ideal solutions. there are two types of non ideal solutions, showing positive deviations and negative deviations from ideal behaviour. If liquid A and B form ideal solution, then
(a) Define vapour pressure (b) Explain why vapour pressure of a solvent lowered by the addition of non-volatile solute ?
How can you justify the observtation that the vapour pressure of the solution of a non-voltile solute in a given solvent is lower than that of the pure solvent. Also the laws concerning this observations.
Why the vapour pressure of saline solutions is lower than that of pure water ?
NARENDRA AWASTHI-DILUTE SOLUTION-Level 3 - Match The Column
