An aqueous reaction is taking place in a liter of water that is being stirred in a 5-liter flask. If the entire reaction was transferred to a 2-liter flask, what's effect on the overall reaction rate?

Answer 1

Simply transferring the reaction to a smaller flask (5 L to 2 L) would have no effect on the rate of the overall reaction, because you haven't changed the concentrations or anything else that affects reaction rate. All you have done is moved the reaction from one vessel to another.