Question

Write the product of the reaction

${\mathrm{CO}}_2\left(\mathrm{g}\right)+4{\mathrm{H}}_2\left(\mathrm{g}\right)\to \cdots \cdots$

Answer 1

The product of the reaction is Methane(CH₄) and Water (H₂O)

• The reaction is

$\underset{\mathrm{Carbon}\mathrm{dioxide}}{{\mathrm{CO}}_2\left(\mathrm{g}\right)}+\underset{\mathrm{Hydrogen}\mathrm{gas}}{4{\mathrm{H}}_2\left(\mathrm{g}\right)}\stackrel{\mathrm{Ni}\left(\mathrm{s}\right)}{\to }\underset{\mathrm{Methane}\mathrm{gas}}{{\mathrm{CH}}_4\left(\mathrm{g}\right)}+\underset{\mathrm{Water}}{2{\mathrm{H}}_2\mathrm{O}\left(\mathrm{l}\right)}+\mathrm{Energy}$

• Hydrogen reacts with carbon dioxide at elevated temperatures and pressure in the presence of a nickel catalyst to produce methane and water. This reaction is called Sabatier Process.