Problem: If the uncatalyzed reaction occurs in a single elementary step, why is it a slow reaction?a. All reactions that occur in one step are slow. b. The probability of an effective three-particle collision is low. c. The reaction requires the collision of three particles with the correct energy and orientation. d. The transition state is low in energy.

FREE Expert Solution

We are asked why an uncatalyzed reaction is a slow reaction even when it occurs in a single elementary step.

Let us analyze each of the choices:

a. All reactions that occur in one step are slow. 

→ The rate of the reaction is affected by:

  • the surface area of a solid reactant
  • concentration or pressure of a reactant
  • temperature
  • nature of the reactants
  • presence/absence of a catalyst

→ Being a one-step process doesn't generally mean that it would be slow based on the above factors. -FALSE

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Problem Details

If the uncatalyzed reaction occurs in a single elementary step, why is it a slow reaction?

a. All reactions that occur in one step are slow. 

b. The probability of an effective three-particle collision is low. 

c. The reaction requires the collision of three particles with the correct energy and orientation. 

d. The transition state is low in energy.

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