Answer the following question given this paragraph: Several substances HCl, NH 3 , and SO 2 have solubility that decreases as temperature increases. They are all gases at standard pressure. When a solvent with a gas dissolved in it is heated, the kinetic energy of both the solvent and solute increases. As the kinetic energy of the gaseous solute increases, its molecules have a greater tendency to escape the attraction of the solvent molecules and return to the gas phase. Therefore, the solubility of a gas decreases as the temperature increases. Q: When a solvent with a gas dissolved in it is heated, the kinetic energy of both the solvent and solute _________? A:

Available options:
[I] evaporates
[II] generates
[III] decreases
[IV] increases
The answer is:
[IV]