Questions in Kinetic Theory of Gases

Select	Question
	A gas at $27^o C$ temperature and 30 atmospheric pressure is allowed to expand to the atmospheric pressure. If the volume becomes 10 times its initial volume, then the final temperature becomes
	When volume of system is increased two times and temperature is decreased half of its initial temperature, then pressure becomes
	A balloon contains 1500 $m^3$ of helium at $27{}^\circ C$ and 4 atmospheric pressure. The value of helium at $-\,3{}^\circ C$ temperature and 2 atmospheric pressure will be
	In the relation $n=\frac{PV}{RT},n=$
	A gas at 27°C has a volume V and pressure P. On heating its pressure is doubled and volume becomes three times. The resulting temperature of the gas will be
	The equation of state corresponding to 8 g of ${{O}_{2}}$ is
	The equation of state for 5 g of oxygen at a pressure P and temperature T, when occupying a volume V, will be (Where R is the gas constant)
	${{O}_{2}}$ gas is filled in a vessel. If pressure is doubled, temperature becomes four times. How many times its density will become
	The volume of a gas will be double of what it is at 0°C (pressure remaining constant) at
	The pressure and temperature of two different gases is P and T having the volume V for each. They are mixed keeping the same volume and temperature, the pressure of the mixture will be