particle model and pressure

• What causes gas pressure, according to the video?

  Particles colliding with container walls
• What kind of force do particle collisions cause?

  A force at right angles
• If the volume of a gas container is increased while keeping temperature constant, what happens to the pressure?

  Pressure is reduced
• What does the force from particle collisions acting over the container's area cause?

  Gas pressure
• Why does increasing the container volume reduce the pressure?

  Particles travel further before colliding
• What happens to the number of collisions per second when volume increases?

  It reduces
• How is the pressure of a gas related to the volume?

  Inversely proportional
• What does pressure in pascals multiplied by volume in meters cubed equal?

  A constant
• Under what condition is the equation $P \times V =$$\text{constant}$ true?


  Constant temperature
• If the pressure is doubled, what must happen to the volume?

  Volume must halve