Gas Laws
What is the ideal gas law?
PV= nRT
real or ideal: do particles collide?
no, ideal gases have no interactions
Gas _____ are small compared to the distances between them,
and their volume is considered negligible.
particles / particle size
What is Boyle's Law?
P1V1 = P2V2
real or ideal:
gases have particles that attract and repel each other
real gases have IMF!
Gas particles are in constant, random ______, moving in straight lines
until they collide with each other or with the walls of their container.
motion
How do you calculate partial pressure of a total pressure?
Xa * Ptotal
real or ideal:
PV=nRT can be used to solve for any variable
ideal, this is the ideal gas law!
_____ between gas particles and between particles and
container walls are perfectly ____, meaning there is no net loss of kinetic energy.
elastic collisions
pressure and R are constant, remove it
V = nT (1)
V = nT (2)
make them equal each other
V1/T1 = V2/T2
real or ideal:
gases are able to mix and create new gases
real, ideal does not interact!
Gas particles do not exert attractive or repulsive
forces on each other
no IMF
How does pressure change with an increase of volume and a decrease in temperature?
pressure decreases
real or ideal:
when temperature decreases, the gases have less kinetic energy and less motion. Eventually they may undergo a phase change.
both --> there are different ways to calculate for real or ideal but usually phases are temperature dependent
he average ______ of gas particles is
directly proportional to the absolute ____ of the gas
kinetic energy, temperature