Why are bubbles released when the bottle or can is opered?

The release of bubbles when a bottle or can of carbonated beverage is opened is a result of the release of dissolved carbon dioxide gas. Carbon dioxide gas is added to these beverages under high pressure during the production process, and it remains dissolved in the liquid until the pressure is released.

When the bottle or can is opened, the pressure inside the container decreases, causing the dissolved carbon dioxide gas to come out of solution and form bubbles. These bubbles rise to the surface of the liquid and escape, creating the fizzy effect that is characteristic of carbonated beverages.

The amount of carbonation in a beverage is determined by the amount of carbon dioxide gas that is dissolved in the liquid. The higher the pressure under which the beverage is carbonated, the more carbon dioxide gas will dissolve in the liquid and the fizzier the beverage will be.

Some carbonated beverages, such as soda pop, are highly carbonated, while others, such as sparkling water, are less carbonated. This difference in carbonation level is due to the amount of carbon dioxide gas that is dissolved in the liquid.