Chemical Kinetics

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Q1.

Match the items of Column-I with items of Column-II:

	Column-I (Concepts Related to Chemical Kinetics)		Column-II (Related Terms)
A.	Mathematical expression for the rate of reaction	I.	Rate constant
B.	Rate of reaction for zero-order reaction is equal to	II.	Rate law
C.	Units of rate constant for zero-order reaction is same as that of	III.	Order of slowest step
D.	Order of a complex reaction is determined by	IV.	Rate of reaction

III IV I II
I II III IV
II I IV III
IV I III II

Explanation:

HINT: For zero-order reaction unit of rate constant is

mol

L^{- 1} s^{- 1}

Explanation:

1. Mathematical expression for the rate of reaction is known as rate law.

2. Rate of reaction for the zero-order reaction is equal to rate constant.

$\begin{array}{l} r = k [A]^{0} \\ ∴ r = k \end{array}$

3. Unit of the rate of reaction is the same as that of the rate of reaction

4. Order of complex reactions is determined by the rate of a reaction, which is the slowest.

Q2. What factor influences the determination of the rate constant in a reaction?

Temperature
Initial concentration of the reactants
Time of reaction
Extent of reaction