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The rate of a reaction can be increased in general by all the factors except by
  • a)
    using a catalyst
  • b)
    increasing temperature
  • c)
    increasing the activation energy
  • d)
    increasing the conc. of reactants
Correct answer is option 'C'. Can you explain this answer?
Most Upvoted Answer
The rate of a reaction can be increased in general by all the factors ...
Factors affecting the rate of a reaction:

- Concentration of reactants
- Temperature
- Surface area
- Pressure (for gas-phase reactions)
- Presence of a catalyst

Explanation:

Increasing the concentration of reactants, temperature, surface area, and pressure (in gas-phase reactions) all increase the rate of a reaction. This is because these factors increase the number of collisions between molecules and therefore increase the likelihood of successful collisions, resulting in the formation of products. However, increasing the activation energy of a reaction decreases the rate of the reaction. This is because activation energy is the minimum energy required for a successful collision to occur and if the activation energy is higher, fewer collisions will have enough energy to overcome the energy barrier and form products.

Therefore, the correct answer is option C, which states that increasing the activation energy of a reaction will not increase the rate of the reaction.
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The rate of a reaction can be increased in general by all the factors except bya)using a catalystb)increasing temperaturec)increasing the activation energyd)increasing the conc. of reactantsCorrect answer is option 'C'. Can you explain this answer?
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