Chapter 10: Gas Laws Flashcards
What is KMT based on
The concept that all particles of matter are in constant motion
Define KMT
Explains the properties of solids, liquids, and gases in terms of their Kinetic energy and the forces which act upon them
What are gases made of according to KMT
Large number of tiny particles that are far apart, relative to their size
How do gases move (3)
Constant, rapid, and random motion
How do gas particles act with each other
Do not attract nor repel each other, only collide and bounce off each other
What does the KE of gas molecules depend on
Depends on their temp
Define elastic collisions
No loss of KE, the energy lost by the striking particles is gained entirely by the particle that is hit or by the wall if the container
What do gas particles collide with
Each other and the walls they are contained in
Describe the shape or volume of a gas
Take the shape and volume of whatever they are contained in
Why do gases take on the shape and volume of their container
They have no shape or volume
Why do gases flow
The attractive forces between the particles are insignificant
Why do liquids flow
The attractive forces are weak
Why don’t solids flow
Their attractive forces are strong
Compare the density of gas to liquid/solid
Gas is 1/1000 that of a solid/liquid
Why can gases be compressed
Gas particles are far apart they can be forced closer together
Define diffusion
The mixing of gases caused by their random motion
When is diffusion faster (2)
At high temp and with small particles
Define effusion
The escape of a gas under high pressure through a small opening