Questions in Kinetic Theory of Gases

Select	Question
	At absolute zero temperature, pressure of a gas will be
	The gas which obeys Boyle's law for maximum range of temperature is
	The vapour of a substance behaves as a gas
	The temperature below which a gas should be cooled, before it can be liquified by pressure only is termed as
	It is possible for a substance to coexist in all three phases in equilibrium, when the substance is at
	When air is filled in the balloon, the pressure and volume both increases while temperature does not change. Here Boyle's law is not obeyed because
	The mean free path of gas molecules depends on (d = molecular diameter)
	For Boyle's law to hold the gas should be
	If pressure of a gas contained in a closed vessel is increased by 0.4% when heated by 1°C, the initial temperature must be
	Consider a 1 c.c. sample of air at absolute temperature ${{T}_{0}}$ at sea level and another 1 cc sample of air at a height where the pressure is one-third atmosphere. The absolute temperature T of the sample at that height is