Why Does Compressed Air Cold

Most techs were stuck in a back building connected by a ma.

Why does compressed air cold.

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. I will take a stab at putting that in simple terms. Why does the compressed air can get so cold when you use it. Why does canned air get cold.

As the liquid co2 is released it turns into a gas and makes your cartridge ice cold. The higher you are in this ocean the lower the pressure would be. Updated april 24 2017. A pocket of gas sits at the top of the can preventing liquid from spraying out when the can is right side up.

Changing from a liquid phase to a gas phase requires energy. The lower you are closer to sea level the higher the pressure because there will be more air pressing down on you. 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. If this is true why use compressed air.

I m not even sure if the liquid is electrically conductive but it boils off in seconds anyway. Long ago i was a pc tech at a slightly fly by night mom pop joint. Co2 cartridges are highly compressed cylinders of liquid carbon dioxide. Even a short blast is enough for frost to accumulate.

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 we take a look at our earth s surface and its atmosphere we can interpret it as a sea of air. If you compress it into a smaller space the energy also becomes more dense so the temperature has to rise at least temporarily.