Particle motion in gases

Question 1

What do colliding gas particles create?

Answer 1

• Pressure

Question 2

What do gas particles do when they move at high speed?

Answer 2

• Bang into each other + whatever they find

- Exert force on it

Question 3

How is the average kinetic stores related to temperature?

Answer 3

• If you increase temperature, transfers energy to kinetic energy store of particles
• Higher temperature, higher average energy
• Increase temperature, increase speed of particles
• Gas at constant volume: increase temperature, increase pressure

Question 4

Describe what happens to the gas particles in a sealed container.

Answer 4

• Particles move fast
• Hits sides more often
• Large momentum, exert large force when colliding
• Increase total force exerted on a unit area, increases pressure