For the reaction, 2 A + B → products, when the concentration of A and B both were doubled, the rate of the reaction increased from 0.3 m o l L - 1 s - 1 to 2.4 m o l L - 1 s - 1 . When the concentration of A alone is doubled, the rate increased from 0.3 m o l L - 1 s - 1 to 0.6 m o l L - 1 s - 1 . Which one of the following statements is correct?

Order of the reaction with respect to B is 2

Total order of the reaction is 4

Order of the reaction with respect to A is 2

Order of the reaction with respect to B is 1

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Rate of reaction depends upon:

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Important Questions on Chemical Kinetics

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Chemistry>Physical Chemistry>Chemical Kinetics>Factors Influencing Rate of Reaction

What is threshold energy?

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Chemistry>Physical Chemistry>Chemical Kinetics>Factors Influencing Rate of Reaction

In mechanism of any reaction, the step going in the slowest manner is called _____

MEDIUM

Chemistry>Physical Chemistry>Chemical Kinetics>Factors Influencing Rate of Reaction

Name the factors that affect the rate of a reaction. Explain in detail.

EASY

Chemistry>Physical Chemistry>Chemical Kinetics>Factors Influencing Rate of Reaction

The addition of a catalyst during a chemical reaction alters which of the following quantities?

EASY

Chemistry>Physical Chemistry>Chemical Kinetics>Factors Influencing Rate of Reaction

The decomposition of phosphine

(P H_{3})

on tungsten at low pressure is a first-order reaction. It is because the

HARD

Chemistry>Physical Chemistry>Chemical Kinetics>Factors Influencing Rate of Reaction

According to the Arrhenius equation,

EASY

Chemistry>Physical Chemistry>Chemical Kinetics>Factors Influencing Rate of Reaction

Zinc piece and zinc powder are taken in two test tubes and equal amount of dil.

HCl

is added.
(a) In which test tube does the reaction proceed faster?
(b) Give reason.
(c) Give an instance in daily life, where such condition is made use.

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Chemistry>Physical Chemistry>Chemical Kinetics>Factors Influencing Rate of Reaction

For the reaction,

2 A + B \to

products, when the concentration of

A

and

B

both were doubled, the rate of the reaction increased from

0.3 m o l L^{- 1} s^{- 1}

2.4 m o l L^{- 1} s^{- 1} .

When the concentration of

A

alone is doubled, the rate increased from

0.3 m o l L^{- 1} s^{- 1}

0.6 m o l L^{- 1} s^{- 1} .

Which one of the following statements is correct?

HARD

Chemistry>Physical Chemistry>Chemical Kinetics>Factors Influencing Rate of Reaction

On which of the following parameters does the rate constant of a reaction depend?
(i) time, (ii) concentration of reactants, (iii) temperature, and (iv) catalyst

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Chemistry>Physical Chemistry>Chemical Kinetics>Factors Influencing Rate of Reaction

A reaction is second order with respect to a reactant. How is the rate of reaction affected if the concentration of the reactant is doubled?

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Chemistry>Physical Chemistry>Chemical Kinetics>Factors Influencing Rate of Reaction

The rate of a first-order reaction is

0.04 m o l l^{- 1} s^{- 1}

10

second and

0.03 m o l l^{- 1} s^{- 1}

20

seconds after initiation of the reaction. The half-life period of the reaction is:

EASY

Chemistry>Physical Chemistry>Chemical Kinetics>Factors Influencing Rate of Reaction

Which one of the factors does not affect rate of the reaction?

HARD

Chemistry>Physical Chemistry>Chemical Kinetics>Factors Influencing Rate of Reaction

Consider the given plots for a reaction obeying Arrhenius equation $(0 ° C < T < 300 ° C) :$ ( $K$ and $E_{a}$ are rate constant and activation energy, respectively )

(I)

Question Image

(II)

Question Image

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Chemistry>Physical Chemistry>Chemical Kinetics>Factors Influencing Rate of Reaction

Mention any two factors which influence the rate of reaction.

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Chemistry>Physical Chemistry>Chemical Kinetics>Factors Influencing Rate of Reaction

Decomposition of

X

exhibits a rate constant of

0 .05 μg / year

. How many years are required for the decomposition of

5 μg

X

into

2 .5 μg

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Chemistry>Physical Chemistry>Chemical Kinetics>Factors Influencing Rate of Reaction

For a reaction, consider the plot of $l n k$ versus $1 / T$ given in the figure. If the rate constant of this reaction at $400 K$ is $10^{- 5} s^{- 1}$ , then the rate constant at $500 K$ is:

Question Image

HARD

Chemistry>Physical Chemistry>Chemical Kinetics>Factors Influencing Rate of Reaction

For an elementary chemical reaction, $A_{2} ⇄_{k_{- 1}}^{k_{1}} 2 A$ , the expression for $\frac{d [A]}{dt}$ is:

EASY

Chemistry>Physical Chemistry>Chemical Kinetics>Factors Influencing Rate of Reaction

How will the rate of reaction be affected when surface area of the reactant is reduced?

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Chemistry>Physical Chemistry>Chemical Kinetics>Factors Influencing Rate of Reaction

The rate of a gaseous reaction is given by the expression

k [A] [B]^{2} .

If the volume of vessel is reduced to one half of the initial volume, the reaction rate as compared to original rate is

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Chemistry>Physical Chemistry>Chemical Kinetics>Factors Influencing Rate of Reaction

1 L

2 M {CH}_{3} COOH

is mixed with

1 L

3 M C_{2} H_{5} OH

to form an ester. The rate of the reaction with respect to the initial rate when each solution is diluted with an equal volume of water will be

Rate of reaction depends upon:

Important Questions on Chemical Kinetics

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