"Consider the reaction AB(g) + X2(g) ABX(g) + X(g), where both the forward and reverse reactions represent elementary steps. At standard thermodynamic temperature, the rate constant for the forward reaction is 2.2 *10^17/M s, and the rate constant for the reverse reaction is 8.1 *10^8/M s. (a) What is the value of the equilibrium constant? (b) Which is the best description of the reaction:(i) does not take place, (ii) reacts completely, or (iii) appreciable quantities of all species are present at equilibrium? Explain"