Physics help from experts.
In an Ideal Gas, collisions between atoms or molecules are elastic; there are no intermolecular attractive forces. You can also see it as hard spheres colliding and hitting each other but which don’t interact with each other.
The Ideal Gas Law is PV= nRT
n = number of moles
R = universal gas constant = 8.3145 kPa*dm3/mol*K
T= Absolute Temperature (Kelvin)
P = pressure in kPa
V = volume in dm3