The rate of a reaction can be increased in general by all the factors except:

using a catalyst

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increasing the temperature

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increasing the activation energy

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increasing the concentration of reactants

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Solution

The correct option is B increasing the activation energy
Activation energy is inversely proportional to the rate of the reaction. When the activation energy increases, the rate of the reaction decreases.

The addition of the catalyst either increases or decreases the rate of the reaction. When the temperature of the reaction is increased or the concentration of the reactants is increased, the rate of the reaction increases.

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Similar questions

Q. In a reaction with two reactants, two trials are performed. In both trials, the concentration of reactant

A

is held constant.
If the concentration of reactant

B

is doubled and the rate of the reaction increases by a factor of eight, what can be concluded from the reaction?

Q. Which of the following factors are responsible for the increase in the rate of a surface catalysed reaction?
I. A catalyst provides proper orientation for the reactant molecules to react
II. Heat of adsorption of reactants on a catalyst helps reactant molecules to.overcome activation energy
III. The catalyst increases the activation energy of the reaction
IV. Adsorption increases the local concentration of reactant molecules on the surface of the catalyst
Select the correct answer using the codes given below:

In a reaction, $A + B \to$ Product, rate is doubled when the concentration of B is doubled and rate increases by a factor of 8 when the concentrations of both the reactants (A and B) are doubled. Rate law for the reaction can be written as :

Q. The reaction A

+

\to

products is first order in each of the reactants. How does the rate of reaction change if the concentration of A is increased by factor

3

Q. Which of the following factors are responsible for the increase in the rate of a surface catalyzed reaction?
1)A catalyst provides proper orientation for the reactant molecules to react
2)Heat of adsorption of reactants on a catalyst helps reactant molecules to overcome activation energy
3)The catalyst increases the activation energy of the reaction
4)Adsorption increases the local concentration of reactant molecules on the surface of the catalyst.
Select the correct answer using the code given below :

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