Final answer:
Heating a closed, sealed can of air will increase the pressure inside the can. This increase in pressure can cause the can to burst, especially if the temperature is high. The combustible nature of the gas inside the can also poses a risk of explosion if exposed to high temperatures.
Step-by-step explanation:
The can contains an amount of isobutane gas at a constant volume, so if the temperature is increased by heating, the pressure will increase proportionately. High temperature could lead to high pressure, causing the can to burst. In addition, isobutane is combustible, so incineration could cause the can to explode.