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For a given reaction of the first order, it takes $20 \min$ for concentration to drop from $1$ to $0.6 mol L^{- 1}$ . The time required for the concentration to drop from $0.6 mol$ $L^{- 1}$ to $0.36 mol L^{- 1}$ is?

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Important Questions on Chemical Kinetics

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Beta Question Bank for Medical: Chemistry>Chapter 10 - Chemical Kinetics>EXERCISE-I (Conceptual Questions)>Q 49

A first order reaction is carried out with an initial concentration of

10

moles per litre

and

80 %

of the reactant changed into the product. Now, if the same reaction is carried out with an initial concentration of

5

moles per litre

, the percentage of the reactant changing to the product is:

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Beta Question Bank for Medical: Chemistry>Chapter 10 - Chemical Kinetics>EXERCISE-I (Conceptual Questions)>Q 50

In the following first-order reactions,

$A + Reagent \to$ Product,

$B + Reagent \to$ Product.

Calculate the ratio of $k_{1} / k_{2}$ , if only $50 %$ of $B$ will have been reacted, when $94 %$ of $A$ has been reacted.

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Beta Question Bank for Medical: Chemistry>Chapter 10 - Chemical Kinetics>EXERCISE-I (Conceptual Questions)>Q 51

The reaction

L \to M

is started with

10.0 g o f L .

After

30

and

90

minutes

5.0 g

and

1.25 g

L

, is left, respectively. The order of the reaction is:

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Beta Question Bank for Medical: Chemistry>Chapter 10 - Chemical Kinetics>EXERCISE-I (Conceptual Questions)>Q 52

If doubling the initial concentration of a reactant doubles

t_{1 / 2}

of the reaction, the order of the reaction is

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Beta Question Bank for Medical: Chemistry>Chapter 10 - Chemical Kinetics>EXERCISE-I (Conceptual Questions)>Q 53

The half life period for catalytic decomposition of

{AB}_{3}

50 mM

4 hrs

and at

100 mM

it is

2 hrs .

The order of reaction is:

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Beta Question Bank for Medical: Chemistry>Chapter 10 - Chemical Kinetics>EXERCISE-I (Conceptual Questions)>Q 54

The rate constant for a reaction is

10.8 \times 10^{- 5} mol L^{- 1} S^{- 1}

. The reaction obeys:

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Beta Question Bank for Medical: Chemistry>Chapter 10 - Chemical Kinetics>EXERCISE-I (Conceptual Questions)>Q 55

A substance $“ A ”$ decomposes in solution following the first order kinetics. Flask $I$ contains $1 L$ of $1 M$ solution of A and flask $II$ contains $100 mL$ of $0.6 M$ solution. After $8 hr$ , the concentration, of $A$ in flask $I$ becomes $0.25 M$ . What will be the time for concentration of A in flask $II$ to becomes $0.3 M$ ?

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Beta Question Bank for Medical: Chemistry>Chapter 10 - Chemical Kinetics>EXERCISE-I (Conceptual Questions)>Q 57

The rate constant for a second order reaction is

8 \times 10^{- 5} M^{- 1} \min^{- 1} .

How long will it take a

1 M

solution to be reduced to

0.5 M

in reactant?

For a given reaction of the first order, it takes 20 min for concentration to drop from 1 to 0.6 mol L-1. The time required for the concentration to drop from 0.6 mol L-1 to 0.36 mol L-1 is?

Important Questions on Chemical Kinetics

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For a given reaction of the first order, it takes $20 \min$ for concentration to drop from $1$ to $0.6 mol L^{- 1}$ . The time required for the concentration to drop from $0.6 mol$ $L^{- 1}$ to $0.36 mol L^{- 1}$ is?