Q.Aerosol cans carry clear warning of heating of the can. Why?

Step 1. An aerosol can holds a pressurised propellant gas inside a sealed, essentially rigid (fixed-volume) metal container.

Step 2. By Gay-Lussac's law, at constant volume, pressure is directly proportional to Kelvin temperature: $P\propto T$.

Step 3. Heating the can (leaving it in direct sun, a hot car, or near a fire) raises the trapped gas's temperature and therefore its pressure, in direct proportion. Past a certain temperature, the internal pressure exceeds what the can is built to withstand, and it ruptures or exp …

Identify the aerosol can as a fixed-volume container and apply Gay-Lussac's law to explain why heating rais …

• Explaining the danger only in vague terms ('it gets hot and explodes') without naming the actual gas law (constant-vo …