Chemistry 9701 · AS & A Level · Reaction kinetics

Reaction kinetics — practice question

The diagram presents the Boltzmann distribution of energies in a gas. The gas reacts with an activation energy, $E_a$. The maximum of the distribution is marked P. If the same reaction is done in the presence of a catalyst, which statement is correct?

  • AThe peak P is at a lower height and the position of $E_a$ moves to the left.
  • BThe peak P is at a lower height and the position of $E_a$ moves to the right.
  • CThe peak P remains at the same height and the position of $E_a$ moves to the left.
  • DThe peak P remains at the same height and the position of $E_a$ moves to the right.

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