Why does stirring increase the speed of a solute dissolving in water

When you stir a solute, more surface area of the substance is exposed to the solvent.

Explanation:

The higher the surface area in relation to volume is, the faster a solute will dissolve.

Hope it helps

Try it and see. My guess is that stirring would increase the rate of dissolution.

Explanation:

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.

answer: they produce more slow than unicellular organisms.