Force exerted by gas particles as they collide with the walls of the container
Gas particles move at a range of speeds, in random directions and are always moving
How does increasing temperature increase pressure?
The particles gain more kinetic energy so they move more, and faster. This means that they collide with the walls of their container more often and with more force.
What is the equation for pressure?
Pressure = force/area
What two units can be used for pressure?
Pascals (Pa) or N/m2 ( newtons per metre squared)
What is Brown's law?
The random motion of particles
When a gas pressure acts on a container it produces a "net force" at right angles to the walls of the container
If the volume decreases, gas pressure increases as there is less space for the particles to move around, so they are colliding with the walls of their container more often.
