One method for the production of hydrogen cyanide is by the gas-phase nitrogenation of acetylene according to the reaction: N₂ +  C₂H₂ ⇆ 2HCN. The feed to a reactor in which the above reaction takes place contains gaseous N₂ and C₂H₂ in their stoichiometric proportions. The reaction temperature is controlled at 300°C. Estimate the product composition if the reactor pressure is: (a) 1 bar; (b) 200 bar. At 300°C, ΔG°_T 30.08 kJ/mole.