At `25^(@)C`, the vapour pressure of pure liquid A (mol. Mas = 40) is 100 torr, (mol. = 80). The vapour pressure at `25^(@)C` of a solution containing 20 g of each A and B is :
A
80 torr
B
59.8 torr
C
68 torr
D
48 torr
Text Solution
Verified by Experts
The correct Answer is:
a
Topper's Solved these Questions
DILUTE SOLUTION
NARENDRA AWASTHI|Exercise Level 2|1 Videos
DILUTE SOLUTION
NARENDRA AWASTHI|Exercise Level 3 - Match The Column|1 Videos
The vapour pressure of pure water at 25^@C is 30 mm. The vapour pressure of 10% (W/W) glucose solution at 25^@C is
The vapour pressure of a pure liquid A is 40 mm of Hg at 310K. The vapour pressure of its liquid in a solution with liquid B is 32 mm of Hg. Mole fraction of A in the solution, if it obeys Raoult's law is :
Vapour pressure of pure water at 23^@C is 19.8 torr . Calculate the vapour of 3m aqueous solution.
Which of the following statements are correct (a) the boiling point of a solution is greater than pure solvent (b) the temperature where the vapour pressure of liquid equals to atmospheric pressure is called its boiling point (c) the vapour pressure of pure solvent is less than the vapour pressure of solution containing non volatile solute. (d) the temperature of liquid remained in the container after evaporation is more than before the evaparation
At 50^@C the vapour pressure of H_2O is 92mm Hg. The vapour pressure of a solution containing 18.1g of non volatile solute in 100ml H_2O at the same temperature is 87mm Hg. Find the molecular weight of the solute.
100g of liquid A(molar mass 140"g mol"^(-1) ) was dissolved in 1000g of liquid B(molar mass 180"g mol"^(-1) ). The vapour pressure of pure liquid B was found to be 500 torr. Calculate the vapour pressure of pure liquid A and its vapour pressure in the solution if the total vapour pressure of the solution is 475 torr.
The vapour pressure of a solution containing non volatile solute is less than the vapour pressure of pure of solvent. Give reason.
The vapour pressure of two liquids P and Q are 80 torr and 60 torr respectively. The total vapour pressure obtained by mixing 3 mole of P and 2 mole of Q would be
NARENDRA AWASTHI-DILUTE SOLUTION-Level 3 - Match The Column
