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Determine Activation Energy from rate?

  1. Nov 24, 2011 #1
    On my test the professor gave us the rate, parameters of A, and temperature of 298K. We were asked to find the activation energy. I know that the Arrhenius equation is LnK= LnA-Ea/RT. However, he did not give us the rate constant "K" instead he gave us the rate. How do you determine activation energy using the rate.
  2. jcsd
  3. Nov 25, 2011 #2


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    Did he tell you the reaction, the concentration of reactants, and the rate law?
  4. Nov 25, 2011 #3
    No he didn't. I assumed it was a zeroth order reaction where k=rate. Even though he didn't specify that. That's what confused me.
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