what are the characteristics of zero order reaction?
['The concentration of reactant decreases linearly with time.[ A]t = [A]0 - kt.', 'The time required for the reaction to be complete, i.e., time at which [A] is zero. tcompletion = [A]0/k = (Initial concentration)/(Rate constant)', 'The units of k are mol L-1 time-1.']