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THE SLOPE OF THE LINE IS X2-X1 BY Y2-Y1
Answer:
The Order of reaction refers to the relationship between the rate of a chemical reaction and the concentration of the species taking part in it. In order to obtain the reaction order, the rate expression (or the rate equation) of the reaction in question must be obtained.
Once the rate equation is obtained, the entire composition of the mixture of all the species in the reaction can be understood.
Reaction Order
The order of reaction can be defined as the power dependence of rate on the concentration of all reactants. For example, the rate of a first-order reaction is dependent solely on the concentration of one species in the reaction. Some characteristics of the reaction order for a chemical reaction are listed below.
Reaction order represents the number of species whose concentration directly affects the rate of reaction.
It can be obtained by adding all the exponents of the concentration terms in the rate expression.
The order of reaction does not depend on the stoichiometric coefficients corresponding to each species in the balanced reaction.
The reaction order of a chemical reaction is always defined with the help of reactant concentrations and not with product concentrations.
The value of the order of reaction can be in the form of an integer or a fraction. It can even have a value of zero.
In order to determine the reaction order, the power-law form of the rate equation is generally used. The expression of this form of the rate law is given by r = k[A]x[B]y.
In the expression described above, ‘r’ refers to the rate of reaction, ‘k’ is the rate constant of the reaction, [A] and [B] are the concentrations of the reactants. The exponents of the reactant concentrations x and y are referred to as partial orders of the reaction. Therefore, the sum of all the partial orders of the reaction yields the overall order of the reaction.