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CHEMICAL KINETICS

23404 The rate of chemical reaction at constant temperature is proportional to

1 The amount of products formed

2 The product of masses of the reactants

3 The product of the molar concentration of the reactants

4 The mean free path of the reaction

Explanation:

(c)The rate of chemical reaction $\propto$ The product of the molar conc. of the reactants (at constant $T$ )

CHEMICAL KINETICS

23405 The concentration of a reactant decreases from $0.2 M$ to $0.1 M$ in $10$ minutes. The rate of the reaction is

1

0.01 M

2

10^{- 2}

3

0.01 m o l d m^{- 3} min^{- 1}

4

1 m o l d m^{- 3} min^{- 1}

Explanation:

(c) Rate of reaction $=$ $\frac{d x}{d t} = [\frac{0.2 - 0.1}{10}] = \frac{0.1}{10}$
$= 0.01 m o l d m^{- 3} m i n^{- 1}$

CHEMICAL KINETICS

23406 When a reaction is progressing

1 The rate of the reaction goes on increasing

2 The concentration of the products goes on decreasing

3 The concentration of the reactants goes on decreasing

4 The reaction rate always remains constant

CHEMICAL KINETICS

23502 The velocity constant of first order reaction is expressed in the units

1 Concentration per unit time

2 Time per unit concentration

3 Per unit time

4 Unit time per unit concentration

Explanation:

(c) $K$ for $1^{s t}$ order reaction $=$ per unit time i.e. Time $^{- 1}$ .

CHEMICAL KINETICS

23404 The rate of chemical reaction at constant temperature is proportional to

1 The amount of products formed

2 The product of masses of the reactants

3 The product of the molar concentration of the reactants

4 The mean free path of the reaction

Explanation:

(c)The rate of chemical reaction $\propto$ The product of the molar conc. of the reactants (at constant $T$ )

CHEMICAL KINETICS

23405 The concentration of a reactant decreases from $0.2 M$ to $0.1 M$ in $10$ minutes. The rate of the reaction is

1

0.01 M

2

10^{- 2}

3

0.01 m o l d m^{- 3} min^{- 1}

4

1 m o l d m^{- 3} min^{- 1}

Explanation:

(c) Rate of reaction $=$ $\frac{d x}{d t} = [\frac{0.2 - 0.1}{10}] = \frac{0.1}{10}$
$= 0.01 m o l d m^{- 3} m i n^{- 1}$

CHEMICAL KINETICS

23406 When a reaction is progressing

1 The rate of the reaction goes on increasing

2 The concentration of the products goes on decreasing

3 The concentration of the reactants goes on decreasing

4 The reaction rate always remains constant

CHEMICAL KINETICS

23502 The velocity constant of first order reaction is expressed in the units

1 Concentration per unit time

2 Time per unit concentration

3 Per unit time

4 Unit time per unit concentration

Explanation:

(c) $K$ for $1^{s t}$ order reaction $=$ per unit time i.e. Time $^{- 1}$ .

CHEMICAL KINETICS

23404 The rate of chemical reaction at constant temperature is proportional to

1 The amount of products formed

2 The product of masses of the reactants

3 The product of the molar concentration of the reactants

4 The mean free path of the reaction

Explanation:

(c)The rate of chemical reaction $\propto$ The product of the molar conc. of the reactants (at constant $T$ )

CHEMICAL KINETICS

23405 The concentration of a reactant decreases from $0.2 M$ to $0.1 M$ in $10$ minutes. The rate of the reaction is

1

0.01 M

2

10^{- 2}

3

0.01 m o l d m^{- 3} min^{- 1}

4

1 m o l d m^{- 3} min^{- 1}

Explanation:

(c) Rate of reaction $=$ $\frac{d x}{d t} = [\frac{0.2 - 0.1}{10}] = \frac{0.1}{10}$
$= 0.01 m o l d m^{- 3} m i n^{- 1}$

CHEMICAL KINETICS

23406 When a reaction is progressing

1 The rate of the reaction goes on increasing

2 The concentration of the products goes on decreasing

3 The concentration of the reactants goes on decreasing

4 The reaction rate always remains constant

CHEMICAL KINETICS

23502 The velocity constant of first order reaction is expressed in the units

1 Concentration per unit time

2 Time per unit concentration

3 Per unit time

4 Unit time per unit concentration

Explanation:

(c) $K$ for $1^{s t}$ order reaction $=$ per unit time i.e. Time $^{- 1}$ .

CHEMICAL KINETICS

23404 The rate of chemical reaction at constant temperature is proportional to

1 The amount of products formed

2 The product of masses of the reactants

3 The product of the molar concentration of the reactants

4 The mean free path of the reaction

Explanation:

(c)The rate of chemical reaction $\propto$ The product of the molar conc. of the reactants (at constant $T$ )

CHEMICAL KINETICS

23405 The concentration of a reactant decreases from $0.2 M$ to $0.1 M$ in $10$ minutes. The rate of the reaction is

1

0.01 M

2

10^{- 2}

3

0.01 m o l d m^{- 3} min^{- 1}

4

1 m o l d m^{- 3} min^{- 1}

Explanation:

(c) Rate of reaction $=$ $\frac{d x}{d t} = [\frac{0.2 - 0.1}{10}] = \frac{0.1}{10}$
$= 0.01 m o l d m^{- 3} m i n^{- 1}$

CHEMICAL KINETICS

23406 When a reaction is progressing

1 The rate of the reaction goes on increasing

2 The concentration of the products goes on decreasing

3 The concentration of the reactants goes on decreasing

4 The reaction rate always remains constant

CHEMICAL KINETICS

23502 The velocity constant of first order reaction is expressed in the units

1 Concentration per unit time

2 Time per unit concentration

3 Per unit time

4 Unit time per unit concentration

Explanation:

(c) $K$ for $1^{s t}$ order reaction $=$ per unit time i.e. Time $^{- 1}$ .