The activation energy of a non–catalysed reaction at `37^@C` is 200 kcal/mol and the activation energy of the same reaction when catalysed decreases to only 60.0 kcal/mol. Calculate the ratio of rate constants of the two reactions.

Explanation

To solve the problem, we need to calculate the ratio of the rate constants of a non-catalyzed reaction to that of the same reaction when catalyzed, using the given activation energies and the Arrhenius equation.

### Step-by-Step Solution:

**Step 1: Convert the temperature to Kelvin.**
- The temperature given is \(37^\circ C\).
- To convert to Kelvin, use the formula:
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