Catalysts

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4 Terms

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What is a catalyst?

  • A catalyst increases the rate of reaction by providing an alternative reaction pathway with a lower activation energy without being used up.

  • Many catalysts would usually only work on a single reaction.

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How do catalysts work?

The catalyst lowers the activation energy, meaning there are more particles with enough energy to react when they collide.

<p>The catalyst <strong>lowers </strong>the activation energy, meaning there are more particles with enough energy to react when they collide.</p><p></p>
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What does the Maxwell-Boltzmann distribution look like when a catalyst is added?

  • With a catalyst present, the molecules still have the same amount of energy, so the curve itself is unchanged.

  • But because the activation energy is now lower, more molecules have energies above this threshold and are able to react

<ul><li><p>With a catalyst present, the molecules still have the same amount of energy, so the curve itself is <strong>unchanged.</strong></p></li><li><p>But because the activation energy is now lower, more molecules have energies above this threshold and are able to react</p></li></ul><p></p>
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