Phase Diagram

Real World Example

Imagine trying to figure out the right outfit to wear based on the weather and the event you're attending. Just like you need to choose whether to wear a coat, a sweater, or a t-shirt based on temperature and occasion, a phase diagram helps determine whether a substance will be a solid, liquid, or vapor based on its temperature and pressure. In this analogy, the temperature is like the weather, the pressure is like the formality of the event, and the state of matter (solid, liquid, or vapor) is like your outfit choice, all of which must be perfectly matched to the conditions presented.