states of matter Flashcards
what are the three states of matter
solid, liquid and gas
what takes place at the melting point
melting and freezing
what is the process of solid to liquid
melting
what is the process of liquid to solid
freezing
what takes place at the boiling point
boiling and condensing
what is the process of liquid to gas
boiling
what is the process of gas to liquid
condensing
how would you draw a diagram of the particles in a solid
the particles are all in a uniform pattern with very little space between them and are in fixed position
how would you draw a diagram of the particles in a liquid
the particles are similar to that of a solid but further apart and no longer in a uniform pattern
how would you draw a diagram of the particles in a gas
there is no pattern between the particles in a gas and they are all randomly spaced apart
which state of matter has the most energy
gas particles have the most energy
which state of matter has the least energy
solid has the least energy - particles are fixed
what are state changes
state changes are physical forces involving the forces between the particles of the substances but the particles themselves dont change
what are chemical changes
chemical changes are where a new product has been formed
what does particle theory state about the amount of energy needed to change state
changing state from solid to liquid and from liquid to gas depends on the strength of the forces between the particles of the substance
what does particle theory state about the nature of particles
the nature of the particles involved depends on the type of bonding and the structure of the substance
what does particle theory state about the forces between particles
the stronger the forces between the particles the higher the melting and boiling point of the substance
what state is below the melting point
solid
what state is above the melting point but below the boiling point
liquid
what state is above the boiling point
gas
