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The Arrhenius equation expresses the rate constant as

  • A.a pre-exponential factor times an exponential
  • B.a linear function of the absolute temperature
  • C.a power of the concentration present
  • D.the reciprocal of the half life

Answer: A

The exponential dependence is why modest temperature changes have such large effects on rate. Plotting the logarithm of the constant against reciprocal temperature gives a straight line of slope minus the activation energy over R.

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