Answer 1:
I am assuming that you are talking about your soft drink. The fizz that you can see when you open a bottle or can of soft drink is actually a gas named carbon dioxide. This gas was added to the drink at very cold temperature. At low
temperatures more CO2 is soluble in
water than at refrigerator temperature. What this
means is that all the excess CO2 that
was put into your beverage at very low temperature
wants to escape as soon as you open the bottle or
can. This makes the fizzy noise.
Since CO2 is a gas and less dense than water, it bubbles to the top. By the way, did you know that adding CO2 to your beverage makes the beverage safe to drink because the CO2 keeps some microorganisms (bacteria for example) from growing in it? |