On a Maxwell–Boltzmann distribution, what is the effect of raising the temperature?

Answer and explanation

Correct answer: A. More particles have energy greater than or equal to the activation energy

  1. Step 1: Raising the temperature shifts the distribution to higher energies.
  2. Step 2: A larger fraction of particles reach the activation energy, so the rate increases.
Answer
More particles have energy greater than or equal to the activation energy.
Why not the others: The activation energy decreases: the activation energy is unchanged. The total number of particles increases: the number is constant. The curve moves to lower energy: it moves to higher energy.

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