States of Matte...

In atmosphere which gas have high partial pressure?

0.5 mole of each of $$H, \  SO_2$$ and $$CH_4$$, are kept in a container. A hole was made in the container. After 3 hours, the order of partial pressures in the container will be:

The molecular weight of $$O_2$$ and $$SO_2$$ are $$32$$ and $$64$$ respectively. If one litre of $$O_2$$ at $$15^0$$C and $$759$$mm pressure contains N molecules, the number of molecules in two litre of $$SO_2$$ under the same conditions of temperature and pressure will be:

Suppose that we change $$U_{RMS}$$ of gas in a closed container from $$5 \times 10^{2}$$ cm/sec to $$10 \times 10^{2}$$ cm/sec, which one of the following might correctly explain how this change was accomplished?

According to Avogadro's law the volume of a gas will ____ as _____ if ____ are held constant.

Vapours of a liquid can exist only at ?

Air contains 79% $${ N }_{ 2 }$$ and 21% $${ O }_{ 2 }$$ by volume. If the pressure is $$750$$ of $$Hg$$, the partial pressure of $${ O }_{ 2 }$$ is:

For a fixed amount of perfect gas, which of these statements must be true?

A weather balloon is inflated with helium. The balloon has a volume of $$100 m^3 $$ and it must be inflated to a pressure of $$ 0.10 atm$$. If $$50 L$$ gas cylinders of helium at a pressure of $$100 atm $$ are used, how many cylinders are needed? Assume that temperature is constant.

A gaseous mixture containing $$ 0.35_{g} $$ of $$ N_{2} $$ and 5600 ml of $$ O_{2} $$ at STP has kept in a 5 liters at 300K. The total temperature of the gaseous mixture is?