TED-Ed: Why don't oil and water mix? - John Pollard

The video explains why salt dissolves in water while oil does not, focusing on the concepts of energetics and entropy. Energetics involves the attractive forces between molecules, while entropy refers to the randomness of molecular arrangements. Water molecules engage in a hydrogen bonding network, favoring the inclusion of salt ions, which dissolve and integrate into the water. In contrast, oil molecules, due to their size and structure, disrupt the water's molecular dance, leading to their exclusion. The balance of molecular interactions and configurations determines whether substances mix.

What new insight or understanding did you gain from this video?