Why Is Compressed Air Cold Upside Down

In other words it begins to boil.

Why is compressed air cold upside down.

Since some of the gases are heavier than air when turned upside down the can will spray out the liquid mixture before it has had time to mix with the lighter gases. The liquid which is sprayed while the can is upside down absorbs more heat as it changes from a liquid to a gas when sprayed. Holding it upside down makes the pressure release faster because. Why does canned air get cold.

When breathed in these gases can displace the oxygen in your lungs. Jul 15 2003 9 physics. Turn that cup upside down and you get all that cold slurpee goodness. Canned air is one of many inhalants that can be abused.

Jul 15 2003 4 the can freezes as the pressure inside is released. A pocket of gas sits at the top of the can preventing liquid from spraying out when the can is right side up. Apr 28 2000 15 995 1 81. When compressed into the can this mixture takes fluid form.

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. As you have noted this liquid quickly evaporates because is is a gas at room temperature. Turning the can upside down and spraying does not allow for the liquid to immediately vaporize and therefore turns the can into a freeze spray. When you turn the can upside down the liquid is forced out instead.

Similarly turn the can upside down and you re shooting out the liquid propellant instead. Gases compressed into liquids absorb much energy upon vaporization which is why under normal use the can becomes quite cold to the touch. Someone else may be able to explain it more accurately but i think that s the general idea. Removing heat and making the can or nozzle cold.

And when you have it down below it can not blow out. As for why it gets cold.