How pressure and volume are related to each other?
In: Physics
Think of a marshmallow. The way it looks now is because there is a normal amount of pressure on it.
You squeeze it and it becomes smaller. Squeezing is extra pressure, you compact everything that the marshmallow is made of into itself. Its size decreases, thus less volume.
If you take away the pressure, maybe even go as far as taking away all of it (creating a vacuum), there is nothing holding the marshmallow back. It grows in size, because there is nothing squeezing it.
More pressure is less volume. Less pressure is more volume.
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