At a given temperature, an #8*mol# quantity of methane that occupies a volume of #200*L# is combusted with stoichiometric oxygen gas. Can you address...?
#"(i) the molar quantity of dioxygen gas required for equivalence;"#
#"(ii) the volume of dioxygen gas required for equivalence;"#
We need a stoichiometrically balanced equation:
The balanced chemical equation tells us that
We started with
Since the volume is specified, there thus must be TWICE the volume of dioxygen compared to methane for stoichiometric equivalence.