Chemistry ch12 Flashcards
(11 cards)
What does the kinetic molecular theory describe
The behavior of gasses in terms of particles in motion
The volume of gas particles in themselves are very _ compared to the volume of the sample
Small
Because gas particles are far apart, there are no significant attractive or repulsive _ between gas particles
Forces
Gas particles are in constant and _ motion
Random
The collisions between gas particles are _ : that is, no _ energy is lost
Elastic; kinetic
What causes a phase change
The addition or removal of emerge
How does the kinetic energy of particles vary as a function of temperature
They are directly proportional
What does Graham’s law state
That the rate of effusion for a gas is inversely proportional to the square root of its molar mass
Do lighter particles diffuse faster than heavier particles
Yes
What is point a called and what happens here
Triple point, the temperature and pressure at which three phases of a substance can coexist
What is point b and what happens here
Critical point, distinction between liquid and gas can no longer be made
