60 mL of methane and 180mL of oxygen are mixed and fixed. The resulting gases are passed through caustic soda solution. Determine the composition of gases before and after passing through base solution.

Explanation

The storichiometric equation is `underset((g))(CH_(4))+underset((g))(2O_(2))tounderset((g))(CO_(2))+underset((l))(2H_(2))O`
`1 vol 2 vol 1vol ovol " " "Gay-Lussac.s coefficients"`
`60mL 180mL 0mL 0mL " "" at start"`
`0mL 60mL 60mL 0mL " " "after the reaction" `
Before passing through caustic soda solution unreacted oxygen =60mL
Carbondioxide formed =80mL
After passing through caustic soda solution(since `CO_(2)` is absorbed)
unreaced oxygen =60mL