# Problem: A plot of k versus 1/T has a slope of -7,445. What is E a, for this reaction?A, 90.79 kJ/molB. 895.5 J/molC. 304.7 kJ/molD. 61.90 kJ/molE. 610.5 J/mol

###### FREE Expert Solution
93% (166 ratings)
###### FREE Expert Solution

We’re being asked to determine the activation energy (Ea) of a reaction given that the plot of k vs. 1/T has a slope of –7445.

We’re given the plot of k (y) vs. 1/T (x)

This means we need to use the two-point form of the Arrhenius Equation:

where:

k = rate constant

Ea = activation energy (in J/mol)

R = gas constant (8.314 J/mol • K)

T = temperature (in K)

A = Arrhenius constant or frequency factor

93% (166 ratings)
###### Problem Details

A plot of k versus 1/T has a slope of -7,445. What is E a, for this reaction?

A, 90.79 kJ/mol

B. 895.5 J/mol

C. 304.7 kJ/mol

D. 61.90 kJ/mol

E. 610.5 J/mol

What scientific concept do you need to know in order to solve this problem?

Our tutors have indicated that to solve this problem you will need to apply the Arrhenius Equation concept. You can view video lessons to learn Arrhenius Equation. Or if you need more Arrhenius Equation practice, you can also practice Arrhenius Equation practice problems.

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Based on our data, we think this problem is relevant for Professor Miller's class at Utah State University.