Sample Problem

During the dissolving process, which of the following steps require(s) energy?

The bond-breaking step of solute particles.

The bond-forming step between solute and solvent particles.

The distribution step where the cluster of solute and solvent particles are distributed evenly throughout the mixture

The overall dissolving process


The bond-breaking step and the distribution step require energy. The bond-forming step releases energy. The overall dissolving process might require energy or it might release energy, depending on the energy required or released in each step.