Particle Motion in Gases

• What should you be able to describe by the end of the video?

  Temperature of gas and its relation to energy
• How does changing the temperature of a gas affect its pressure?

  It changes the pressure of the gas
• What is the state of particles in a gas?

  They are very far apart and in constant motion
• What causes the pressure of a gas?

  Particles colliding with the walls of the container
• How can you increase the pressure of a gas?

  Increase collisions per second or collision energy
• What happens to gas particles at low temperatures?

  They have lower kinetic energy and fewer collisions
• What is the relationship between temperature and kinetic energy of gas particles?

  Higher temperature means higher average kinetic energy
• What is the effect of high temperatures on gas pressure?

  Gas pressure is relatively high at high temperatures
• Where can you find more questions on the pressure of gases?

  In the vision workbook linked above
• What are the key ideas about the relationship between gas temperature and pressure?

  • Temperature relates to average kinetic energy
  • Low temperatures = lower kinetic energy, fewer collisions, lower pressure
  • High temperatures = higher kinetic energy, more collisions, higher pressure