Why do arisols explode in high tperatures?
- TomLv 72 months ago
Because they are contained in a sealed container. The higher the temperature, the higher the pressure inside----until it exceeds the strength of the container------And BOOM!
- busterwasmycatLv 72 months ago
two things contribute. One is that there is usually a liquid phase as well, when dealing with compressed gases. You can usually hear it when you shake the can.
When you heat the can, that liquid boils and becomes gas, and that increases pressure enormously. That is basically the same reason volcanoes explode: liquid converts to gas and expands enormously.
There is also a lesser effect of simple gas expansion with heating, so even if there is no liquid, you will eventually cause pressure to exceed the failure limit of the container. It is just that liquid converting to gas is much faster at changing the pressure. No container can withstand any and all pressure, and besides, even if they were to design cans to accept way above usual pressures to make life difficult for idiots who want to see them explode in a campfire, it would make the cans cost a lot more, and people simply don't like to pay for it.
- nineteenthlyLv 72 months ago
Because they contain gas under pressure which expands when it gets hotter, destroying the can.
- Donnie PorkoLv 72 months ago
PV = nRT
P = pressure
T = temperature
Those are the two terms you need to know for here.
When the temperature goes up, the pressure goes up. Metal cans are designed to hold only so much pressure. If the pressure exceeds the limit, then the can will explode.
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- billrussell42Lv 72 months ago
It's not the aerosol that explodes, but the metal can. The high temperature causes the pressure inside the can to increase until the welds (or however the metal can is held together) to break. This would happen no matter what was inside the metal can.
- Anonymous2 months ago
I do believe that they explode because the particles in the can will start to bump each other and the heat will make them move faster. When they move so fast, they will create a really high pressure and explode 💥
- LeeLv 42 months ago
Because the gas inside expands and the resultant internal pressure exceeds the ultimate tensile strength of the container material.