Don't know where to begin.

Question

1) A thermally activated process (a reaction) takes four minutes at 811°C. How long will it take (in minutes) at 748°C if the activation energy is 150 kJ/mol?

Answer 1

Use the Arrhenius equation. Choose any concentration you wish but the easy number is 1.
k1 is 1/4
k2 = ?
T2 is 811 C converted to K.
T1 is 748 C converted to K.
Ea is 150,000
Post your work if you get stuck.

Answer 2

but that get with this?????

Answer 3

I don't understand. What does "but that get with this????" mean?

Answer 4

yes, that formula I use for this

Answer 5

It's the Arrhenius equation.
Substitute the numbers I gave in the earlier response and solve for k2.

Answer 6

the response must express it in minutes and I don't know where it will go out if what I get is a constant

I am grateful can collaborate me