Match the items of Column I and Column II.
Column I
Column II
A
Mathematical expression for the rate of a reaction
(i)
rate constant
B
Rate of the reaction for a zero-order reaction is equal to
(ii)
rate law
C
Units of rate constant for a zero-order reaction is the same as that of
(iii)
order of the slowest step
D
Oredr of a complex reaction is determine by
(iv)
rate of a reaction
Match the items of Column I and Column II.
| Column I | Column II | ||
| A | Mathematical expression for the rate of a reaction | (i) | rate constant |
| B | Rate of the reaction for a zero-order reaction is equal to | (ii) | rate law |
| C | Units of rate constant for a zero-order reaction is the same as that of | (iii) | order of the slowest step |
| D | Oredr of a complex reaction is determine by | (iv) | rate of a reaction |
The rate of a reaction is the rate of disappearance of a reactant or appearance of a product.
Rate=−d[R]/dt=(d[P])/dt
Where, [R]= molar concentration of the reactant.
[P]= molar concentration of the product.
This equation is known as the rate law.
Thus, the mathematical expression for the rate of a reaction is known as the rate law.
(A)→(ii)
For a zero-order reaction, the rate is dependent only on the rate constant i.e. it is independent of the concentration of the reactant.
Rate=k[R]0
Where, k= rate constant
[R]= molar concentration of the reactant.
Rate=k
Thus, the rate of the reaction for a zero-order reaction is equal to the rate constant (k).
(B)→(i)
For a zero-order reaction,
Units of rate of the reaction =molL−1s−1
Units of rate constant =molL−1s−1
Thus, the units of rate constant for a
zero-order reaction is the same as that of the rate of the reaction.
(C)→(iv)
Complex reactions occur in multiple steps and the slowest step is known as the
rate-determining step. Thus, the order of a complex reaction is determined by the order of the slowest step.
(D)→(iii)
(A)→(ii),(B)→(i),(C)→(iv),(D)→(iii)
The rate of a reaction is the rate of disappearance of a reactant or appearance of a product.
Rate=−d[R]/dt=(d[P])/dt
Where, [R]= molar concentration of the reactant.
[P]= molar concentration of the product.
This equation is known as the rate law.
Thus, the mathematical expression for the rate of a reaction is known as the rate law.
(A)→(ii)
For a zero-order reaction, the rate is dependent only on the rate constant i.e. it is independent of the concentration of the reactant.
Rate=k[R]0
Where, k= rate constant
[R]= molar concentration of the reactant.
Rate=k
Thus, the rate of the reaction for a zero-order reaction is equal to the rate constant (k).
(B)→(i)
For a zero-order reaction,
Units of rate of the reaction =molL−1s−1
Units of rate constant =molL−1s−1
Thus, the units of rate constant for a
zero-order reaction is the same as that of the rate of the reaction.
(C)→(iv)
Complex reactions occur in multiple steps and the slowest step is known as the
rate-determining step. Thus, the order of a complex reaction is determined by the order of the slowest step.
(D)→(iii)
(A)→(ii),(B)→(i),(C)→(iv),(D)→(iii)
