Question

At 298K, adding a catalyst makes a certain reaction go 250,000 times faster than the uncatalyzed...

At 298K, adding a catalyst makes a certain reaction go 250,000 times faster than the uncatalyzed reaction. The activation energy for the uncatalyzed reaction is 80.0 kJ/mol. What is the activation energy for the catalyzed reaction? Assume the frequency factor A is the same for both catalyzed and uncatalyzed reactions.

A. 49.2 kJ/mol

B. 68.4 kJ/mol

C. 34.7 kJ/mol

D. 54.1 kJ/mol

E. 60.8 kJ/mol

Please provide explanation.

Homework Answers

Know the answer?
Your Answer:

Post as a guest

Your Name:

What's your source?

Earn Coins

Coins can be redeemed for fabulous gifts.

Not the answer you're looking for?
Ask your own homework help question
Similar Questions
The activation energy of a certain uncatalyzed reaction is 64 kJ/mol. In the presence of a...
The activation energy of a certain uncatalyzed reaction is 64 kJ/mol. In the presence of a catalyst, the Ea is 55 kJ/mol. How many times faster is the catalyzed than the uncatalyzed reaction at 400°C? Assume that the frequency factor remains the same.
A catalyst decreases the activation energy of a particular exothermic reaction by 58 kJ/mol, to 24...
A catalyst decreases the activation energy of a particular exothermic reaction by 58 kJ/mol, to 24 kJ/mol. Assuming that the mechanism has only one step, and that the products are 89 kJ lower in energy than the reactants, sketch approximate energy-level diagrams for the catalyzed and uncatalyzed reactions. What is the activation energy for the uncatalyzed reverse reaction? (Please Show Work)
Suppose that a catalyst lowers the activation barrier of a reaction from 122 kJ/mol to 57...
Suppose that a catalyst lowers the activation barrier of a reaction from 122 kJ/mol to 57 kJ/mol . By what factor would you expect the reaction rate to increase at 25 ∘C? (Assume that the frequency factors for the catalyzed and uncatalyzed reactions are identical.) Express your answer using two significant figures.
The activation energy for a reaction is changed from 184 kJ/mol to 59.5 kJ/mol at 600....
The activation energy for a reaction is changed from 184 kJ/mol to 59.5 kJ/mol at 600. K by the introduction of a catalyst. If the uncatalyzed reaction takes about 2627 years to occur, about how long will the catalyzed reaction take? Assume the frequency factor A is constant and assume the initial concentrations are the same.
How many times faster will the reaction occur at 47 ∘C than at 0 ∘C? Express...
How many times faster will the reaction occur at 47 ∘C than at 0 ∘C? Express your answer using two significant figures. The activation energy of a certain reaction is 79.4 kJ/mol .