Pressure in Gases

Question 1

What happens when gas particles collide with the surface of a container?

Answer 1

They exert a force on the container

Question 2

Two factors affecting the total force exerted on a container

Answer 2

-Frequency of collisions
-Force of collisions

Question 3

Key factor affecting the temperature of a gas

Answer 3

The average kinetic energy of the molecules within a gas

Question 4

What will happen if a gases temperature increases?

Answer 4

Its pressure will also increase

Question 5

Why pressure increases in gases as temperature does

Answer 5

Particles are moving faster as they have more KE therefore the force+frequency of collisions increases

Question 6

Boyle’s Law

Answer 6

For a fixed mass of gas held at constant temperature the product of the gas pressure and volume occupied by the gas is equal to a constant

Question 7

Equations relating to Boyle’s Law

Answer 7

pV=Constant OR p1V1=p2V2

Question 8

How are gas pressure and volume related to eachother

Answer 8

They are inversely proportional

Question 9

Effect on temperature when a gas is compressed

Answer 9

It increases

Question 10

Effect on temperature when a gas expands

Answer 10

It decreases