Factors that effect gas pressure

• What are gas particles free to do in a container?

  Move about in random directions
• What happens when gas particles hit the walls of a container?

  They rebound and change direction
• What do gas particles exert when they collide with container walls?

  A force that creates pressure
• How is pressure defined in relation to force?

  Pressure is force per unit area
• What two factors mainly determine total pressure in a gas?

  Number of collisions and energy of collisions
• How does temperature affect gas pressure?

  Pressure increases with temperature
• What happens to gas particles when heated?

  They gain kinetic energy and move faster
• What is the effect of increased concentration on gas pressure?

  Higher concentration leads to more collisions
• How does volume affect gas pressure?

  Pressure increases as volume decreases
• What happens to pressure if the container's volume is reduced?

  More collisions occur, increasing pressure
• How do flexible containers like balloons behave with temperature changes?

  They expand or shrink instead of increasing pressure
• What happens to the volume of a balloon when the number of collisions increases?

  The balloon expands due to increased collisions
• What should you be aware of regarding expandable containers?

  They complicate pressure calculations
• What are the main factors affecting gas pressure?

  • Temperature: Higher temperature increases pressure
  • Concentration: More particles lead to more collisions
  • Volume: Decreased volume increases pressure
• How do temperature, concentration, and volume interrelate in gas pressure?

  • Temperature increases kinetic energy, leading to more collisions
  • Increased concentration means more particles collide with walls
  • Decreased volume results in more collisions per unit area