The following reaction reaches equilibrium at 350 c and i bar. q5 chch: ch + haa cas. cahs if the system initially contains i mole each of h; and cjlch ch (given: for ha. ahr agr"s -0 jmol; r-8.314 jmol. k). demonstrate the mole frnction of all species as function of reaction coordinates, c, for the reaction. (a) 4 marks) caleulate the equilibrium constant k, for the reaction at 350 "c. (b) (12 marks) detemine the mole fraction of cahsch; at equilibrium.