Gas Laws

Question 1

What’s the equation?

Answer 1

PV= nrT

Question 2

WHAT ARE some ofTHE MAIN ASSUMPTIONS FROM KINETIC THEORY OF IDEAL GASES?

Answer 2

• gases are made up of molecules which are in constant random motion in straight lines
• the molecules behave as rigid spheres
• pressure is due to collisions between the molecules and the container
• all collisions are perfectly elastic
• temp of gas is proportional to the average KE of molecules

Question 3

What are the two main assumptions

Answer 3

There are no IMF between molecules (gas)

The volume occupied by the molecules is entirely negligible relative to the volume of the container

Question 4

What is the units for pV=NRT

Answer 4

P= Pa
V= m^3
N= mass/mass of one mol 
R= gas constant given in the Q 
T= kelvin (+273 to degrees C)

Question 5

What are the standard conditions ?

Answer 5

Conc= 1mol/dm3
Pressure= 100kPa
Temp= 298K