For a general gaseous dissociation reaction , which of the following mathematical relationships is u — Chemical Equilibrium Chemistry Question

💡 Solution & Explanation

This is the standard textbook derivation based on conservation of mass. Total moles at equilibrium $= 1 + (n-1)\alpha$. Since molar mass is inversely proportional to total moles, $d/D = 1 / (1 + (n-1)\alpha)$, which rearranges to $\alpha = (D - d) / ((n - 1)d)$.