A preweighted vessel was filled with ${\rm{C}}{{\rm{O}}_2}$ at STP and weighed. It was then evaluated, filled with ${\rm{S}}{{\rm{O}}_2}$ at the same temperature and pressure and again weighted. The weight of the ${\rm{C}}{{\rm{O}}_2}$ will be

If the temperature of 500 mL of air increases from 27\,^\circ C{\mkern 1mu} {\mkern 1mu} \,\,{\rm{to}}{\mkern 1mu} \,{\mkern 1mu} 42\,^\circ C under constant pressure, then the increase in volume shall be

Oxygen gas generated by the decomposition of potassium chlorate is collected. The volume of oxygen collected at 24\,^\circ C and atmospheric pressure of 760 mm Hg is 128 mL. Calculated the mass of oxygen gas obtained. The pressure of the water vapour at 24\,^\circ C is 22.4 mm Hg

At NTP, the density of a gas, whose molecular weight is 45, is

When air is blown to balloon (at constant temperature) its pressure and volume both increases. This violates:

At constant temperature, in the given mass of an ideal gas

Under what conditions will a pure sample of an ideal gas not only exhibit a pressure of 1 atm but also a concentration of $1{\rm{mol}}\,\,{\rm{litr}}{{\rm{e}}^{ - 1}}$ ? $(\;R = 0.082$ litre atm ${\rm{mo}}{{\rm{l}}^{ - 1}}{\deg ^{ - 1}})$

A preweighted vessel was filled with ${\rm{C}}{{\rm{O}}_2}$ at STP and weighed. It was then evaluated, filled with ${\rm{S}}{{\rm{O}}_2}$ at the same temperature and pressure and again weighted. The weight of the ${\rm{C}}{{\rm{O}}_2}$ will be

The pressure of gas having 2 mole in $44.8{\rm{litre}}$ vessel at $540{\rm{K}}$ is:

$10{\rm{g}}$ of hydrogen fluoride gas occupy 5.6 litre of volume at NTP. The empirical formula of the gas is HF. The molecular formula of the gas will be $(at.{\rm{ }}Wt.{\rm{ }}of{\rm{ }}fluorine = 19)$

A vessel contains an ideal gas at pressure P and temperature T. If the root mean square speed of the gas molecules doubles, keeping the volume constant, the new pressure P' will be: