While there are a couple of various sorts of aerosols (spray) cans, they work off of a similar fundamental standard: Boyle’s law. Boyles law states that if the temperature is kept constant, the pressure would increase and the volume would decrease.
We know that before you spray a can of paint you are supposed to shake it up for some time, and you can hear as a metal roller shakes around inside.
There are 2 substances inside the can, one being your primary product, paint, for instance, the other being a gas that is being highly pressurized, that it holds a fluid state even when it is warmed past its boiling point.
This liquified gas will be a substance that has a boiling point far beneath room temperature. The can is sealed, keeping this gas from boiling and transforming into a gaseous state. That is until you push down the spout. The minute the spout goes down, and the seal is discharged, there is now away out.
In a split second, the gas starts to bubble and changes into a gas of expanding volume. This drives the paint out trying to find a spot with less pressure.
(The substance is blended with gas under high pressure, enough to render the gas into a fluid. At the point when the nozzle is opened, this lessens the pressure all of a sudden, allowing the gas to increase in volume. As it does as such, it gets pushed out of the spout, taking the substance with it.
This forces the product to dart away from the spout, and you have a layer of paint.
If the same can would be heated up too much it would explode. This is because of Gay-Lussacs, raising the temperature of gas while the volume is constant would expert more pressure. The can would explode because the gas molecules are warmed up, which makes the particles inside the can spread out and move around quicker. That means that they would hit the walls with more force
Since they exert more force on the walls of the can, and the can is sealed, the pressure on the walls of the can would, eventually, be too much and the can would explode.
An example of Charles law is, for example, if you leave a helium balloon outside on a cold day it would shrink. This is because according to Charles law if the temperature decreases at a constant pressure the volume would also decrease.
As the temperature decreases the gas molecules inside the balloon start to move closer together and doesnt move around as much which causes the volume of the gas to decrease too.
For example, if I placed one helium balloon in a freezer and one in a hot car, the one in the freezer would be significantly smaller since the law works both ways if pressure is constant and the temperature is increased so is the volume.
The balloon would expand in the car because as the helium molecules gets warmer they sart to move around faster and spread out more. And because the material of the balloon is strechy the balloon would get bigger since the molecules would occupy more space.