Question

a 1 - l soda bottle contains dissolved carbon dioxide gas. which bottle would have the highest concentration of dissolved gas?
○ a bottle that is sealed
○ a bottle that was opened 1 minute ago
○ a bottle that was opened 1 hour ago
○ a bottle that was opened 1 day ago

Explanation:

When a soda bottle is sealed, the dissolved carbon - dioxide gas is in a state of equilibrium with the gas above the liquid. Once the bottle is opened, the pressure above the liquid decreases, and carbon - dioxide gas starts to escape from the solution according to Henry's law. The longer the bottle is open, the more gas escapes, and the lower the concentration of dissolved gas becomes. So, the sealed bottle has the highest concentration of dissolved gas.

Answer:

a bottle that is sealed