kinetic molecular theory of matter Flashcards
define matter
matter is that which occupies space and has mass
Solids, liquids and gasses is based on the __ of the atoms and molecules.
Motion
Diffusion is the movement of gas or liquid molecules from the region of __ to the __ concentration
Higher , lower
The __ of liquid is because the strength of the __ forces between the particles is much less than solids
fluidity, attractive
define interconversion of matter
The phenomenon of change of one state of matter into another and back to the original state is called into conversion of matter
what does the Brownian movement prove?
Proves that matter consist of tiny particles in motion.
define brownian motion
The irregular motion of suspended particles is called Brownian motion. 
what does the Brownian motion state?
state points
- motion decreases if particles increase
- Motion increases with the decrease in density of the medium
- temperature increases the brownian movement also increases
what is sublimation
solid turns directly into a gas without going to the liquid state.
What is deposition
vapors change into solid without going to the liquid state
State the points of kinetic molecular theory
all matter is made up of tiny particles
different substances have different particles
the particles are in constant motion
the more energy the particles have the faster they move
the attraction between particles decreases with increasing distance
What is latent in the heat of fusion
A state of tightly bound solid to a loosely bound liquid at the same temperature
State two differences between evaporation and boiling
- evaporation is a slow process whereas is boiling is a rapid process
- evaporation Can occur at all temperatures whereas boiling takes place at a fixed temperature
Naphthalene sublimes at __ temperature. If heated it melts at __degree Celsius
room temperature, 80C
what is triple point?
temperature and pressure which the substance can exist in all phases of matter
