Question

Does the entropy increase when a substance dissolves in liquid?

1) Yes, because the substance disperses into the liquid, increasing the disorder
2) No, because the substance remains in a concentrated form in the liquid
3) Cannot be determined without additional information
4) None of the above

Answer 1

The entropy of a system increases when a substance dissolves in a liquid because the particles of the solid become more disordered and interact with the solvent particles. This leads to an increase in entropy.

Step-by-step explanation:

The entropy of a system increases when a substance dissolves in a liquid. This is because the particles of the solid experience greater freedom of motion and additional interactions with the solvent particles when they dissolve in a liquid. This leads to a more uniform dispersal of matter and energy and a greater number of microstates, resulting in an increase in entropy. Therefore, the correct answer is option 1) Yes, because the substance disperses into the liquid, increasing the disorder.