Final answer:
The gas inside the can may expand at higher temperatures, leading to an increase in pressure. To determine the new pressure when left in a car at 50 °C, we can use the ideal gas law.
Step-by-step explanation:
The warning on the can advises to store it only at temperatures below 120 °F (48.8 °C) and not to incinerate it because the gas inside the can may expand and potentially explode at higher temperatures. This is due to the increase in pressure as the temperature rises.
To determine the new pressure inside the can when left in a car that reaches 50 °C on a hot day, we can use the ideal gas law, which states that PV = nRT, where P is the pressure, V is the volume, n is the number of moles of gas, R is the ideal gas constant, and T is the temperature in Kelvin.
By keeping the volume constant at 350 mL, converting the temperature to Kelvin (50 °C + 273.15), and solving for P2, we can find the new pressure in the can.