A cylinder filled with compressed helium gas is used to inflate party balloons.
Use ideas about particles to explain how helium gas exerts a pressure on the inside walls of the cylinder.
The helium cylinder has a safety label:
WARNING Pressurised container. Do not expose to temperatures above 45 ∘C45\text{ }^{\circ}\text{C}45 ∘C.
How would increasing the temperature of the helium gas affect the pressure inside the cylinder?
Explain your answer in terms of the behavior of the gas particles.
The cylinder has a volume of 600 cm3 and the pressure of the helium inside is 6 times atmospheric pressure.
Calculate the volume that this helium gas would occupy if it were fully released to atmospheric pressure, assuming the temperature remains constant.