Don’t know if it happens to other cans as well but why do spray paint cans feel cold when we touch after shaking them?
In: Chemistry
Put some rubbing alcohol in your hand. As it evaporates it will remove heat from your skin and feel cold. The alcohol is turning from a liquid to a gas and it needs energy to change state. The can feels cold because the liquid propellant and paint in the paint can is turning to gas. This is how air conditioning works in your house. The outside unit compresses the refrigerant into a liquid. When the liquid gets to the indoor unit it goes through an expansion valve and it becomes a gas, which removes the heat from the air, just like the paint can getting cold. Then the hot gas goes back to the outside unit where it is cooled down and compressed again into a liquid. Hope that helps.
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