Cola Volcano

The video tutorial explains how carbon dioxide is dissolved in carbonated drinks and how it escapes over time, causing the drink to go flat. It demonstrates an experiment using diet cola and mints to rapidly release carbon dioxide through nucleation, resulting in a foam fountain. The process is explained in detail, highlighting the role of nucleation sites on the mints' surface, which accelerates the release of gas, leaving the drink flat.

What happens to a carbonated drink when it is left open for a few hours?

• It goes flat as carbon dioxide escapes.

• It becomes more carbonated.

• It becomes sweeter.

• It becomes colder.

Which materials are needed to perform the decarbonation experiment?

• A bottle of water, a packet of sugar, and a paper tube.

• A bottle of juice, a packet of salt, and a paper tube.

• A bottle of diet cola, a packet of mints, and a paper tube.

• A bottle of soda, a packet of baking soda, and a paper tube.

Why does the pressure inside a cola bottle drop when opened?

• Because the temperature increases.

• Because the carbon dioxide starts to bubble out.

• Because the bottle expands.

• Because the liquid evaporates.

What is the process called when carbon dioxide rapidly comes out of the solution due to mints?

• Evaporation

• Condensation

• Sublimation

• Nucleation

What role do the tiny imperfections on the surface of mints play in the experiment?

• They dissolve in the cola.

• They act as multiple nucleation sites.

• They absorb the carbon dioxide.

• They change the color of the cola.

What happens to the mints when they are added to the cola?

• They change color.

• They drop to the bottle's base.

• They dissolve completely.

• They float on the surface.

What is the final state of the cola after the experiment?

• It becomes more fizzy.

• It remains unchanged.

• It becomes flat.

• It changes color.