A cartridge of compressed carbon dioxide gas is used to rapidly inflate a life jacket.
Explain how the carbon dioxide gas exerts a pressure on the inner walls of the cartridge. Refer to particles in your answer.
Explain what happens to the pressure of the carbon dioxide gas inside the cartridge if its temperature increases.
A fixed mass of carbon dioxide has a volume of 16 000 cm316\,000\text{ cm}^316000 cm3 when its pressure is 105 kPa105\text{ kPa}105 kPa.
Calculate the pressure of this fixed mass of carbon dioxide when it is compressed inside the cartridge.
[volume of carbon dioxide in cartridge = 400 cm3400\text{ cm}^3400 cm3]