Does stirring increase the speed of a solute dissolving in water?
Try it and see. My guess is that stirring would increase the rate of dissolution.
So get 2 beakers, fil them up with 10 g salt, and add 100 mL water. Put a magnetic follower in one of the beakers, place it on a stirrer and let it rip. Measure the time, and see if the unstirred beaker still has solute on the bottom.