Quote by dmoravec
well, you have an equation for Ea... rearrange it to solve for Ea.
What variables do you know? What variables do you need?
hint: you might not have to solve for each k value individually

E
a=R(ln k
2/k
1)[(1/T
2)(1/T
1)]^1
E
a=?
T
2=363.0K
T
1=372.0K
time1=336s
time2=270s
R=8.314 J/mol*k
Do I plug in the times for k? I am attempting it now, it looks as if it should still all cancel and leave me with J/mol which I want....