States of Matte...

On the surface of the earth at $$1\ atm$$ pressure, a balloon filled with $$H_{2}$$ gas occupies $$500\ mL$$. This volume is $$5/6$$ of its maximum capacity. The balloon is left in air. It starts rising. The height above which the balloon will burst if temperature of the atmosphere remains constant and the pressure decreases $$1\ mm$$ for every $$100\ cm$$ rise of height is:

The vapour pressure of a solvent decreased by $$10\ mm$$ of mercury when a non-volatile solute was added to the solvent. The mole fraction of the solute in the solution is $$0.2$$. What should be the mole fraction of the solvent, if the decrease in the vapour pressure is to be $$20\ mm$$ of mercury?

If the mean free-path of gaseous molecule if 60 cm at a pressure of $$1\times 10^{-4}mm$$ mercury what will be its mean free-path when the pressure is increased to $$ 1\times 10^{-2}$$ mm mercury.

An ideal gas undergoes a process in which $$T = T_{0} + aV^{3}$$, where $$T_{0}$$ and $$'a'$$ are positive constants and $$V$$ is molar volume. The molar volume for which pressure will be minimum is :

Assume that you take a flask, evacuate it to remove all the air and find it's mass to be 478.1 g .You then fill the flask with argon to a pressure of 2.15 atm and reweigh it. What would the balance read (in grams) of the flask has a volume of 7.35 L and the temperature is $$ 20^0 C$$ ?

At a constant temperature, which of the following aqueous solutions will have the maximum vapour pressure?

$$4$$g argon (Atomic mass $$=40$$) in a bulb at a temperature of TK has a pressure P atm. When the bulb was placed in hot bath at a temperature $$50^o$$C more than the first one, $$0.8$$g of gas had to be removed to get the original pressure. T is equal to :

Which of the following mixtures of gases does not obey Dalton's law of partial pressure?

Which mixture of gases at room temp does not obey daltons law of partial pressure?

A mixture of helium and neon gases is collected over water at $$28.0^o$$C and $$745$$ mmHg. If the partial pressure of helium is $$368$$ mmHg, what is the partial pressure of neon?