Particle theory and pressure in gases

Question 1

Gas particles colliding together creates pressure

Answer 1

1) Gas particles collide with one another when they move around.
2) When they collide with something, a force is exerted onto it.
3) In a sealed container, gas particles act against the containers walls - creating an outward pressure.

Question 2

Impact of increasing temperature

Answer 2

1) Particles gain kinetic energy.
2) Therefore, they hit the walls harder and more frequently.
3) This increases the pressure exerted on them.
4) Temperature and pressure are proportional.

Question 3

Impact of decreasing volume of container

Answer 3

1) More distance between each particle.
2) Fewer collisions between particles and the walls of the container.
3) Therefore, pressure will decrease.

Question 4

Boyle’s law

Answer 4

P1 x V1 = P2 x V2

Question 5

Gay Lussac’s law

Answer 5

P1/T1 = P2/T2

Question 6

Specific heat capacity equation

Answer 6

Q = m x c x T