But if these two non polar substances actually aggregate together, they will decrease the amount of surface area around this entire molecule. And instead of having these 22 water molecules that are trapped we only have 123-45-6789 of these water molecules that will be trapped. And that is a favorable reaction because we basically decrease the amount of we decrease the amount of water molecules that are trapped. And so we increase the amount of water molecules that can actually form those hydrogen bonds that are stabilizing. And this interaction between the non polar molecules in a polar solvent such as water is known as a hydrophobic interaction. And this effect is known as the hydrophobic effect.