Kinetic molecular theory Flashcards
Kinetic molecular theory
A model that is a way to explain our macroscopic observations on a molecular level
Important aspects of the KM theory
Motion of particles
Energy of particles
Spaces between particles
Forces of attraction
Microscopic explanation of solids
Particles are arranged in a fixed position
Particles cant move and glide over each other
Little spaces between particles
Microscopic explanation of liquids
Particles arent in a fixed position
Particles can move and glide over each other
Little spaces between the particles
Microscopic explanation of gases
Particles can move easily
Particles can move past each other
Lots of spaces between particles
Temperature
The measure of the average kinetic energy of particles
KM theory explanation of solids
Small spaces between particles Low energy of particles Particles vibrate Very strong intermolecular forces Phase change
KM theory explanation of liquids
Bigger spaces between particles but smaller compared to gases
More energy than solids but less than gases
Particles vibrate and rotate simultaneously
Weaker forces than solids but stronger than gases
Phase change
KM theory explanation of gases
Very big spaces High energy Particles can move around Weak to no forces between particles Phase change