Question

The reaction, $C{H_3}COO{C_2}{H_5} + NaOH \to C{H_3}COONa + {C_2}{H_5}OH\;$ is:
This question has multiple correct options
A) Bimolecular reaction
B) Second order reaction
C) Third order reaction
D) None of these

Answer 1

The Order of reaction is said to be the relationship between the rate of a chemical reaction and the concentration of the species taking part in it. To obtain the reaction order, the rate expression (or the rate equation) of the reaction in question must be calculated. Once the rate equation is found, the entire composition of the mixture of all the species in the reaction can be explained.

Complete step by step answer:
The order of a chemical reaction can be found out by its rate law. The rate law for a chemical reaction relates the reaction rate with the concentration or partial pressures of the reactants. For the general reaction, $A + bB \to C$ with no intermediate steps in its reaction mechanism, meaning that it is an elementary reaction and its rate law is given by
$r = k{\left[ A \right]^x}{\left[ B \right]^y}$

Where $A$ and $B$ are the concentrations of reactants, $k$ is the rate constant, and $x$ ,$y$ exponents vary for each reaction and must be determined experimentally.
In this case in the reaction given in the question above:
When the order of a reaction is two, the reaction is known to be a second-order reaction.
The rate of these reactions can be obtained from the concentration of two separate reactants.
Thus we can say,
The reaction $C{H_3}COO{C_2}{H_5} + NaOH \to C{H_3}COONa + {C_2}{H_5}OH\;$ is a bimolecular and a second order reaction, as it contains two different types of molecules.
$Rate{{ }} = \;k\;[C{H_3}COO{C_2}{H_5}\left] {{ }} \right[NaOH]$

So the correct answers are options A, B.

Note: The order of reaction does not depend on the stoichiometric coefficients related to each species in the balanced reaction.
The reaction order of a chemical reaction is often defined with the help of reactant concentrations and not with product concentrations.
The value of the order of the reaction is in the form of an integer or a fraction. It can also have a value of zero.