Question

Hola Brainly Mates❤️☺️
An interesting question(question is given at the end) for u based on Phy, Chem 'nd real lyf experiments. XD✌️✌️✌️✌️
Well, it has been a common discussion matter for a very long tym abt what'll happen if we drop Mentos into Coca-Cola or other soft drinks! One among them were the funny and rubbish answer that it'll produce Cyanide...LOL....XD...Well, we all know that it's utter rubbish...

Okay anyway, if we drop Mentos into Coca-Cola, actually all the liquid will erupt out just like a fountain.
➡️Why it happens so?
The addition of the Mentos leads to the rapid nucleation(changing phase of state) of carbon dioxide gas bubbles precipitating out of solution.
Eq:
CO2(liquid-dissolved)->CO2(gas)

Also there's a term called activation energy..So adding mentos will drastically reduce the activation energy of the Cola, resulting in a sudden physical reaction that ejects the Cola out like a fountain!
(The same can be observed when u drop a pinch of sugar, salt, grain or sand, but the height of the ejected fountain is less than what when Mentos is dropped).
So... actually this happens!

So...my question:
➡️Since this is an eg of nucleation, give more examples of 'nucleation'.
➡️ Also give a very short statement describing 'activation energy'​

Answer 1

Answer:

Examples of nucleation

Examples of the nucleation of fluids (gases and liquids) Clouds form when wet air cools (often because the air rises) and many small water droplets nucleate from the supersaturated air. ... Nucleation of the droplets of liquid water is heterogeneous, occurring on particles referred to as cloud condensation nuclei.

activation energy:

To understand this, we need to look at what actually happens to reactant molecules during a chemical reaction. In order for the reaction to take place, some or all of the chemical bonds in the reactants must be broken so that new bonds, those of the products, can form. To get the bonds into a state that allows them to break, the molecule must be contorted (deformed, or bent) into an unstable state called the transition state.