Ideal Gas Molecules

Question 1

What causes gas pressure

Answer 1

In a gas the molecules are constantly moving in rapid and random directions

They collide with the walls of their container, bounce of and exert a force which causes a pressure.

Question 2

The pressure caused by a gas depends on the number of……….that the particles have with the container walls per……

Also depends on the……of the collisions

Answer 2

Collisions
Second

Force

Question 3

How do you increase the pressure inside the container

Answer 3

Increase the temperature
Decrease the volume
Increase the amount (mass) of gas

Question 4

What is Boyle’s law

Answer 4

p1 x v1 = p2 x v2

Question 5

What do the conditions have to be to make Boyle’s law work

Answer 5

Mass of gas is fixed

Temperature is constant

Question 6

What is absolute zero

Answer 6

The temperature in which the kinetic energy of a gas will be zero

Question 7

What is 0 kelvin in Celsius

Answer 7

-273ºC

Question 8

Give the equation that links temperature and pressure

Answer 8

p1 p2
— = –
T1 T2