Water's ability to dissolve a wide variety of molecules is important, but more important is the hydrophobic effect, which drives the aggregation of nonpolar molecules and plays a role in the folding of proteins and formation of lipid bilayers. what forces drive the hydrophobic effect?

The correct answer is increase in entropy of water molecules.

Explanation:

The hydrophobic effect is illustrated as the capability of the non-polar molecules to cluster together or self-assemble excluding the water. The interaction between the non-polar molecule and water are not favorable. The water gets discharged from the non-polar surface and develops a hydrophobic effect.  

The hydrophobic effect makes the hydrogen bonding of water to become reoriented and resulting in an increase in the entropy of water molecules surrounding the solvation shell. The mobility of the water molecules enhances due to the development of intermolecular hydrogen bonding between the molecules of water. Thus, the hydrophobic effect is mediated by an enhancement in the entropy of water molecules.  

well the answer is 2!