2 L of hydrogen and 2.5 L of chlorine are allowed react in diffused light. Write the volume composition of the component gases after reaction.

Explanation

Reaction between hydrogen and chlorine leading to this production of hydrogen chloride is given as
`H_(2)+Cl_(2) to 2HCl`
`"1 vol 1 vol 2 vol Gay-Lussac.s volumes"`
`"2 2.5 L 0 L at start"`
`"0 0.5 L 4L after the reaction"`
The volume of the mixuture is 4.5 L
Volume of unreacted `Cl_(2)=0.5L`
Volume of HCl produced =4L