For the thermal decomposition of ${{\text{N}}_{2}}{{\text{O}}_{5}}(~\text{g})$ at constant volume, the following table can be formed, for the reaction mentioned below.
$2~{{\text{N}}_{2}}{{\text{O}}_{5}}(~\text{g})\to 2~{{\text{N}}_{2}}{{\text{O}}_{4}}(~\text{g})+{{\text{O}}_{2}}(~\text{g})$
