A carbonated beverage will form bubbles when the dissolved carbon dioxide is depressurized to form emulsions at the top, and it will make ‘fizzing’ sounds when it is opened or poured into a container.
SINGAPORE: All of us love to have a chill drink when thirsty, especially one with little fizz. A carbonated beverage, such as cola or beer, will form bubbles when the dissolved carbon dioxide is depressurized to form emulsions at the top, and it will make ‘fizzing’ sounds when it is opened or poured into a container. Fizz can also result from a chemical reaction, such as a solid dissolving in a liquid to produce gas.
Mostly, soda is made of carbonated water and high fructose corn syrup. Carbonated water is simply water that has had carbon gas more or less ‘injected’ into it. This causes the reaction that makes those bubbles appear at the top of most sodas.
Phosphoric acid is also an ingredient in soda that makes a sharper flavor (that burning sensation). Most of the acidity in soda pop comes from the phosphoric acid, not from the carbonation. In addition, it slows down the growth of bacteria which are lively in sugary solutions.
When a liquid is subjected to a high pressure using CO2 gas, the gas will enter the liquid until an equilibrium state is reached where as many CO2 molecules leave the liquid as enter it in a given time. When the container is opened to atmospheric conditions, the CO2 will come out of solution until a new equilibrium is reached with the atmosphere. Because there is nil CO2 in the atmosphere, most of the CO2 will come out of solution and the drink will seem ‘flat.’
© WOC Media