Why Does Compressed Air Cold

I will take a stab at putting that in simple terms.

Why does compressed air cold.

Why does canned air get cold. If you compress it into a smaller space the energy also becomes more dense so the temperature has to rise at least temporarily. If this is true why use compressed air. Most techs were stuck in a back building connected by a ma.

Changing from a liquid phase to a gas phase requires energy. Because these gases are compressed to liquid form when you turn the can upside down and press the nozzle liquid will come out before it turns to gas. The lower you are closer to sea level the higher the pressure because there will be more air pressing down on you. Why does the compressed air can get so cold when you use it.

A pocket of gas sits at the top of the can preventing liquid from spraying out when the can is right side up. Why does canned air get cold. Skip navigation sign in. Why does the compressed air can get so cold when you use it.

A given volume of gas has a certain amount of energy. If you ve ever used a can of compressed air to blow dust out of your keyboard you ve experienced how quickly the can gets cold. Long ago i was a pc tech at a slightly fly by night mom pop joint. Updated april 24 2017.

This frost all over the cylinder sort of cold is thermodynamics in action. Even a short blast is enough for frost to accumulate. As the liquid co2 is released it turns into a gas and makes your cartridge ice cold. If we take a look at our earth s surface and its atmosphere we can interpret it as a sea of air.