NEW SYSTEMATIC MODERN CHEMISTRY>Chapter 4 - Chemical Kinetics>REVIEW EXERCISES>Q 6

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IMPORTANT

Earn 100

In a reversible reaction, the rates of reaction on both sides are:

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Important Questions on Chemical Kinetics

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IMPORTANT

NEW SYSTEMATIC MODERN CHEMISTRY>Chapter 4 - Chemical Kinetics>REVIEW EXERCISES>Q 7

For a first order reaction, we have

k = 100 s^{- 1} .

The time of completion of

50 %

reaction is

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IMPORTANT

NEW SYSTEMATIC MODERN CHEMISTRY>Chapter 4 - Chemical Kinetics>REVIEW EXERCISES>Q 8

The rate of reaction between

A

and

B

increases by a factor of

100

. When the concentration of

A

is increased

10

fold, the order of reaction with respect to

A

is

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IMPORTANT

NEW SYSTEMATIC MODERN CHEMISTRY>Chapter 4 - Chemical Kinetics>REVIEW EXERCISES>Q 9

The rate of a reaction,

A + B + C \to

products is given by;

r = k {[A]}^{1 / 2} {[B]}^{1 / 3} {[C]}^{1 / 4} .

The order of reaction is

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IMPORTANT

NEW SYSTEMATIC MODERN CHEMISTRY>Chapter 4 - Chemical Kinetics>REVIEW EXERCISES>Q 10

The first order rate constant for the decomposition of

N_{2} O_{5}

is

6 \times 10^{- 4} \sec^{-}

. The half-life period for the decomposition in seconds is

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IMPORTANT

NEW SYSTEMATIC MODERN CHEMISTRY>Chapter 4 - Chemical Kinetics>REVIEW EXERCISES>Q 11

In which of the following cases does the reaction go to farthest to completion?

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NEW SYSTEMATIC MODERN CHEMISTRY>Chapter 4 - Chemical Kinetics>REVIEW EXERCISES>Q 12

For the reaction

A + B + C \to

Products, it was found that when the concentration of the reactant

A

was doubled (concentration of reactant

B

and

C

remaining constant), the initial rate of reaction also doubled. Which one of the following is the order of the reaction?

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IMPORTANT

NEW SYSTEMATIC MODERN CHEMISTRY>Chapter 4 - Chemical Kinetics>REVIEW EXERCISES>Q 13

The reaction

L ⟶ M

is started with

10.0 g

of

L .

After

30

and

90

minutes

5.0 g

and

1.25 g

of

L

respectively, are left. The order of the reaction is

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12th West Bengal Board

IMPORTANT

NEW SYSTEMATIC MODERN CHEMISTRY>Chapter 4 - Chemical Kinetics>REVIEW EXERCISES>Q 14

For a chemical reaction,

A ⟶ B,

it is observed that the rate of reaction doubles when the concentration of

A

is increased four times. The order of reaction in

A

is