13.71 It is found that a gas undergoes a zero-order decomposition reaction in the presence of a nickel catalyst. If the rate constant for this reaction is 8.1102mol/(Ls), how long will it take for the concentration of the gas to change from an initial concentration of 0.10M to 1.0102M ? 13.72 The reaction AB+C is found to be zero order. If it takes 5.2102 seconds for an initial concentration of A to go from 0.50M to 0.25M, what is the rate constant for the reaction