Asked Feb 2, 2020
31. With regards to entropy, how does water contribute to the hydrophobic effect?

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olyp min 31. With regards to entropy, how does water contribute to the hydrophobic effect?


Expert Answer

Step 1

The entropy:

In an object it is defined as a calculation of the quantity of energy that is unavailable to perform some work.

Step 2

Hydrophobic effect:

It can be defined as the ability of a non-polar molecule to cluster or self-assemble together exclusive of the water. The interaction of nonpolar and water molecule are not favorable. The water is released from the non-polar surface. It produces a hydrophobic effect.

For example:

When someone tries to dissolve some nonpolar compound in water, then the hydrogen bonding between the water molecules becomes disrupted. In this way the entropy increases and the nonpolar compound does not dissolve in water.

Step 3

Thus, a hydrophobic effect is driven by a rise in the entropy of water molecules. This could be explained better as follows:

This effect results into the reorientation of the hydrogen bonding of water. This causes a rise in t...

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