The elementary reversible reaction 2A <-->B is carried out in a ow reactor where pure A is fed at a concentration of 5 mol/L . If the equilibrium conversion is 75% and that 60 % conersion can be achieved in a 10L reactor for a 5 mol A/L feet at a rate of 1 L/min. determine the rate constants if a) reaction is liquid phase b) reaction is gas phase