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Recent questions tagged lowering-vapour-pressure

$5 g$ of a nonvolatile compound (molar mass $50\; g \;mol^{-1}$) is added to 100 g of water . If the decrease of pressure is $11.31$ Torr, the vapour pressure of water will be

asked Aug 5, 2014 by meena.p

1 answer

The vapour pressure of a solvent is found to be $400 mm$ Hg at $300 K$ When a certain amount of nonvolatile solute added to $50\;mol$ of the solvent its vapour pressure decreases to $360\;mm Hg$. The amount of solute added is:

asked Aug 5, 2014 by meena.p

1 answer

The vapour pressure of pure liquid solvent A is 0.80atm.When a non volatile substance B is added to the solvent,its vapour pressure drops to 0.40atm,the mole fraction of component B in the solution is

asked Mar 25, 2014 by balaji.thirumalai

1 answer

Which one of the following aqueous solutions has the lowest vapour pressure?

asked Feb 17, 2014 by sreemathi.v

1 answer

For dilute solutions containing 2.5g of a non-volatile non electrolyte solute in 100g of water,the elevation in boiling point at 1atm pressure is $4^{\large\circ}C$.Assuming concentration of solute is much lower than the concentration of solvent,the vapour pressure (mm of Hg) of the solution is (take $K_b=0.76Kkgmol^{-1})$

asked Feb 13, 2014 by sreemathi.v

1 answer

For dilute solutions containing 2.5g of a non-volatile non electrolyte solute in 100g of water,the elevation in boiling point at 1atm pressure is $2^{\large\circ}C$.Assuming concentration of solute is much lower than the concentration of solvent,the vapour pressure (mm of Hg) of the solution is (take $K_b=0.76Kkgmol^{-1})$

asked Feb 13, 2014 by sreemathi.v

1 answer

Which one of the following completely dissociated salt solutions will give the lowering of vapour pressure double from its theoretical value?

asked Feb 12, 2014 by sreemathi.v

1 answer

The relative lowering of vapour pressure is equal to the molar fraction.This law is known as

asked Feb 12, 2014 by sreemathi.v

1 answer

Relative lowering of vapour pressure is directly proportional to

asked Feb 12, 2014 by sreemathi.v

1 answer

Which one of the following aqueous solution posses lowest vapour pressure?

asked Feb 12, 2014 by sreemathi.v

1 answer

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