Pressure causes item to get hot (to the extreme being enough pressure creating a star).
But if heat is essentially the movement of atoms, why does more pressure cause more heat?
Ie. The focused pressure of an ice skate blade makes the ice under it to melt.
In: 2
Pressure is directly related to the average velocity of the atoms or molecules. A “hot”
molecule is really just moving faster and bumping into more molecules. When you compress these molecules together you are taking all that movement and concentrating it. If you leave it there and the heat dissipates the pressure also drops because there is less movement in the now cooler molecules.
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