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Standard X

Chemistry

Factors Affecting the Rate of a Chemical Reaction

A consecutive...

Question

A consecutive reaction (shown in the diagram) is characterised by:

maxima in the concentration of

A

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maxima in the concentration of

B

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maxima in the concentration of

C

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highly exothermic

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Solution

The correct option is D maxima in the concentration of $B$
A consecutive reaction is characterized by maxima in the concentration of $B$ . Initially, only $A$ is present.

As time progresses, more and more $B$ is formed. Hence, the concentration of $B$ increases. But with an increase in the concentration of $B$ , the rate of conversion of $B$ to $C$ also increases. Hence, a maxima is achieved in the concentration of $B$ .

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Similar questions

Explain why?

Rate of reaction is change in concentration in a given time interval. The change in concentration is (final concentration - initial concentration). As the reaction progresses the change in concentration of reactants decreases and that of products increases. D C gets a negative sign in case of reactants and
positive sign in case of products.

Q. In the reaction:

A + B ⇌ C + D

. The initial concentration of

A

and

B

are

1 M

each. The value of

K_{c}

10^{8}

. What is the equilibrium concentration of

A

Consider the reaction, A $\to$ B. Rate of reaction = + $\frac{d [B]}{d t}$ . Which of the following statement(s) defines the positive sign used in the rate of the given reaction?

Q. In the reaction, A + 2B

\to

products, doubling the concentration of B (keeping the concentration of A unchanged) increases the rate of reaction by:

Q. The reaction

A + B ⇌ C + D

is studied in a one litre vessel at

250^{\circ} C

. The initial concentration of A was 3n and that of B was n. When equilibrium was attained, the equilibrium concentration of C was found to the equal to the equilibrium concentration of B.

What is the concentration of D at equilibrium :

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