Question

what is an example of the effect of pressure on solubility?
salt dissolving in water
bubbles forming in a pot of boiling water
soil absorbing water
carbon dioxide gas bubbles escaping a soft - drink can

Explanation:

Henry's law states that the solubility of a gas in a liquid is directly proportional to the partial pressure of the gas above the liquid. When a soft - drink can is opened, the pressure inside the can decreases, and carbon dioxide gas, which was dissolved under high pressure, escapes as bubbles. Salt dissolving in water is mainly affected by temperature and not pressure. Bubbles forming in boiling water are due to temperature change causing water to vaporize. Soil absorbing water is related to capillary action and not pressure - solubility relationship.

Answer:

D. carbon dioxide gas bubbles escaping a soft - drink can