Activation For Visio 2002 How Do You Calculate The Activation Energy When All You Know Is The Rate Is Doubled?

How do you calculate the activation energy when all you know is the rate is doubled? - activation for visio 2002

In class, I mentioned that, in general, when the heat of the reaction 10C approximately twice as high. This works because many of activation energies are more or less the same. Calculate the activation energy of a reaction if the rate of exactly twice when heated reaction from 20C to 30C.