[caboose332]

I was looking over this problem and was having some trouble, if someone could provide some insight that would be great.

"you are carrying out a reaction in a laboratory. You need to convert 1 mole of reactant X into products. The reaction shows first order kinetics, and the reaction mixture has a constant volume of 1.00 L.
*at 1:00 pm you start the reaction at 25 degrees celsius with 1.00 mole of reactant x.
*at 2:00pm you find that .60 mole of reactant x remain, you immediately increase the temperature to 35 degrees c.
*at 3:00 pm you discover that .20 moles of reactant x are present. you want to be able to finish the reaction by 4:00pm, but you cannot stop the reaction until .01 moles of reactant X remain. You must increase the temperature again.

What is the minimum temperature required to complete the reaction by 4:00 pm? (remember, the reaction is complete when only .01 moles of X remain)

[MOTOBALL]

Please show us your reasoning to solve this problem, even if you cannot work it through to the end.

[Schrödinger]

I can give you hints. Try using the integrated rate laws and the Arrhenius equation