Gas Pressure, temperature and Volume

How do particles in gas create pressure

Gas particles move around freely, so when they collide with the walls of the container they exert a force, which creates pressure

what does the total pressure depend on

how many collisions there are and how much energy each collision involves.

factors that effect pressure

temperature, volume and concentration

how does temperature affect pressure

When heating up a substance, you transfer energy to each of the particle’s energy stores. This means that the kinetic energy of the particles increases, and more collisions occur, and each collision would involve more force. This would increase the pressure.

how does concentration affect pressure

if you increase the number of particles but keep the volume the same, there are more particles available for collisions, which means that collisions will increase, therefore increasing the pressure.

how does volume affect pressure

if volume is decreased, the particles have less far to travel to the walls of the container, and will therefore result in more collisions. This will increase the pressure.

How do temperature and concentration affect pressure in a flexible container

They will increase the volume of the container, rather than the pressure.

describe relationship with pressure and volume

inversely related - when pressure goes up, volume goes down. This emans that pressure x volume will always give a constant value

constant value equations

pv=constant OR p1v1=p2v2