States of Matte...

At what relative humidity will $$Na_2SO_4$$ be deliquescent (absorb moisture) when exposed to the air at $$0^o$$C? 

Read the Paragraph carefully and answer the following questions:

 100 g of an ideal $$\left( {mol.wt. = 40} \right)$$ gas  is present in a cylinder at $${27^0}c\;and\,2atm$$  pressure. During transportation, cylinder fell and a dent was developed in the cylinder. The valve attached to cylinder cannot keep the pressure greater than $$2atm$$ and therefore  $$'10g'$$ of gas leaked-out through cylinder.

The volume of the cylinder before a dent was:

The vapour pressure of two pure liquids $$(A)$$ and $$(B)$$ are $$100$$ and $$80\ torr$$ respectively. The total vapour pressure of solution obtained by mixing $$2$$ moles of $$(A)$$ and $$3$$ moles of $$(B)$$ would be :-

The density of a gas is equal to: 

A closed bulb capacity 200ml containing $${ CH }_{ 4 }$$, $${ H }_{ 2 }$$ and He at 300K. The ratio of partial pressure of $${ CH }_{ 4 }$$, $${ H }_{ 2 }$$ and He, respectively is 2:3:5. Calculate the ratio of their weights present in the container.

Ideal gas equation is also called equation of states because:

What would be the vapour pressure of 0.5 molal solution of non volatile solute in benzene at $$30^oC$$ ? The vapour pressure of pure benzene at $$30^oC$$ is 119.6 torr.

An evacuated glass vessel weights 50.0 g when empty.  148.0 gm when filled with a liquid of density 0.98 g/mL and 50.5 g when filled with an ideal gas at 760 mm Hg at 300 K. Determine the molecular weight of the gas.

The vapour pressure of pure water is 760 mm at $$25^{ 0 }C$$.The vapour pressure of solution containing 1(m) solution of glucose will be:

A mixture of $$He$$ and $$SO_2$$ at one bar pressure contains $$20\%$$ by weight of $$He$$. Partial pressure of $$He$$ be: