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
It isnt the pressure that makes heat. It’s the process of compressing the gas that makes heat. You have to put WORK into the gas while compressing it, and that work show up as heat. At the atomic level, pushing in the piston to compress the gas literally bounces the atoms back with increased energy, and that adds up to higher temperature (identical to higher kinetic energy in the atoms)
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