Topic summary
Carbonated drink
Extracted from the Wikipedia article Soft drink.
Carbonated drinks
Carbonated drinks or fizzy drinks are beverages that consist mainly of carbonated water. The dissolution of carbon dioxide (CO2) in a liquid gives rise to effervescence or fizz. Carbon dioxide is only weakly soluble in water; therefore, it separates into a gas when the pressure is released. The process usually involves injecting carbon dioxide under high pressure. When the pressure is removed, the carbon dioxide is released from the solution as small bubbles, which causes the solution to become effervescent, or fizzy.