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 Which of the following will increase the rate of the reaction?

Option: 1

Addition of negative catalyst.


Option: 2

Increasing reactant concentration.


Option: 3

Cooling the reaction.


Option: 4

None of the above.


Answers (1)

best_answer

Factors affecting rate of reaction:

Effect of Concentration: 
From law of mass action, we know
Rate of reaction ∝ Concentration of reactants.
Generally, rate of reaction decreases with passage of time, due to decrease in concentration of reactants.


Effect of temperature:
Most of the chemical reactions are accelerated by increase in temperature. Thus, cooling the system will decrease the rate of the reaction. 

Effect of catalyst:
Presence of positive catalyst increases the rate of reaction.
Presence of negative catalyst decreases the rate of reaction.

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shivangi.shekhar

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