The dimerization reaction of buta$-1,3-$diene was studied at a constant temperature of K $625$ in a rigid vessel with a volume of $0\mathrm{.}400$ liters. Both substances in the reaction below are gases:

A$.$ If the product of the reaction $($vinylcyclohex$-1-$ene$-4)$ was formed in a liquid state of aggregation, would the change in the enthalpy of the reaction be smaller $/$ larger $/$ unchanged compared to the original reaction? Justify your answer with a graphical representation that includes the

The enthalpies of the reactants and products in both reactions.