Pressure

Question 1

What is the total pressure in a container dependent on (2 things)?

Answer 1

• The total number of collisions between the particles and the container
• The force of each collision between the particles and the container

Question 2

How does increasing temperature effect the pressure?

Answer 2

• Expandable container = increases volume NOT pressure
• Fixed container:
• Increasing temperature increases the kinetic energy of each particle
• Particles move faster so more collisions occur and each collision has more force
• More collisions nad stronger collisions = higher pressure

Question 3

How does increasing concentration effect the pressure?

Answer 3

• Expandable container = increases volume NOT pressure
• Fixed container:
• Increasing concentration increases the number of particles in any given volume
• Therefore, more particles collide with the container
• More collisions = higher pressure

Question 4

How does increasing volume effect pressure?

Answer 4

• Fixed container:
• Increasing volume decreases the number of particles in any given volume
• Therefore, less particles collide with the container as they have to travel further between each collision
• Less collisions = lower pressure

Question 5

How is pressure and volume related?

Answer 5

• Inversely related
• p x V = constant