If 10 volumes of dihydrogen reacts with 5 volumes of dioxygen gas, how many volumes of water vapour would be produced (volumes are measured under the same conditions)

In a mole of water vapour at NTP, the volume actually occupid or taken up by the molecules is

A certain volume of Ar gas require 45 sec to effuse through a hole at a certain pressure and temperature. The same volume of another gas of unknown molecular weight require 60 sec to pass through the same hole under the same condition of temperature and pressure. The molecular weight of gas is

A sample of hydrogen gas occupies a volume of 300 ml at 1.2 Bar pressure and 5° C. Calculate its volume at 0.45 bar pressure and 70° C.

A sample of hydrogen gas occupies a volume of 300 ml at 1.2 bar pressure and 5^@C . Calculate its volume ar 0.45 bar pressure and 70^@C .