We’re being asked to determine the temperature the reaction be run in order to drop that time down to only 30 minutes.
This means we need to use the two-point form of the Arrhenius Equation:
where k1 = rate constant at T1
k2 = rate constant at T2
Ea = activation energy (in J/mol)
R = gas constant (8.314 J/mol•K)
T1 and T2 = temperature (in K)
We're going to calculate for the temperature using the following steps:
Step 1: Estimate the rate constants (k1 and k2).
Step 2: Calculate the temperature.
A reaction with an activation energy of 75 kJ/mol takes 3 hours to reach completion when run at 25°C. At what temperature should this reaction be run in order to drop that time down to only 30 minutes?
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