Determine Activation Energy from rate?

AI Thread Summary
The discussion centers on a test scenario where the professor provided the rate, parameters of A, and a temperature of 298K, but did not give the rate constant "K." The main challenge is determining the activation energy using the provided rate instead of "K." The Arrhenius equation, LnK = LnA - Ea/RT, is referenced, but the lack of specific information about the reaction, reactant concentrations, and rate law adds to the confusion. The assumption made is that it could be a zeroth order reaction, where the rate equals the rate constant, despite the professor not specifying this. This highlights the importance of clear communication regarding reaction details in chemistry assessments.
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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.
 
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Did he tell you the reaction, the concentration of reactants, and the rate law?
 
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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