[NO] [O ] m n Rate k = [cyclopropane] - - [NO] X (mol L ) - - [O ] X (mol L ) - - - Initial rate x (mol L min ) . X10 = k [ . ] [ . ] - m n ...( ) For experiment Rate = k [NO] [O ] m n .
] n = n = i.e., n= n Therefore the reaction is first order with respect to O ( ) ( ) ⇒ . x . x = k [ . ] [ .
] k [ . ] [ - - m n m . ] n = m = i.e., m= m Therefore the reaction is second order with respect to NO The rate law is Rate = k [NO] [O ] The overall order of the reaction = ( + ) = Differences between rate and rate constant of a reaction: s.no Rate of a reaction Rate constant of a reaction It represents the speed at which the reactants are converted into products at any instant. It is a proportionality constant XII U7 kinetics - Jerald XII U7 kinetics - Jerald - - - - s.no Rate of a reaction Rate constant of a reaction It is measured as decrease in the concentration of the reactants or increase in the concentration of products.
It is equal to the rate of reaction, when the concentration of each of the reactants is unity It depends on the initial concentration of reactants. It does not depend on the initial concentration of reactants.