Respuesta :
Answer:
The rate of the reaction is directly proportional to the concentration of the reactant.
Explanation:
Let's consider a reaction of the kind A → B.
A general rate law has the following form:
r = k . [A]ⁿ
where,
r: reaction rate
k: reaction constant
[A]: molar concentration of the reactant A
n: order of reaction for A
For a first-order reaction, the rate law is:
r = k . [A]
Give the characteristic of a first-order reaction having only one reactant.
The rate of the reaction is proportional to the square root of the concentration of the reactant. NO. This would happen if n = 1/2.
The rate of the reaction is proportional to the square of the concentration of the reactant. NO. This would happen if n = 2
The rate of the reaction is directly proportional to the concentration of the reactant. YES.
The rate of the reaction is proportional to the natural logarithm of the concentration of the reactant. NO. This could never happen.
The rate of the reaction is not proportional to the concentration of the reactant. NO. This would happen if n = 0.
The characteristic of a first order reaction having only one reactant is that the rate of the reaction is directly proportional to the concentration of the reactant.
What is first order reaction?
First order reactions are those reactions in which rate of the chemical reaction will depends on the concentration of the only reactant of the reaction.
Suppose a chemical reaction in which reactant A will form product B as:
A → B
So, Rate of the reaction is directly depends on the concentration of the A reactant.
Hence, option (3) is correct.
To know more about first order reaction, visit the below link:
https://brainly.com/question/518682
