P4 Particle model of matter Flashcards
what is specific heat capacity
it is the amount of energy required to raise the temperature of 1kg of an object by 1 degree celsius
how do you calculate density
density= mass/volume
what is specific latent heat and its equation (you do not need to know the equation it just helps with your understanding)
it is the amount of energy required to
what is internal energy
the energy stored inside a system by the particles that make it up
when given values for all variables in the equation
p1 x v1 = v2 x v2
what do you do to find the final variable
rearrange it
when the particles are closer together what happens to the density
it increases
in some cases, are liquids more dense than solids
yes
give all 6 state changes solid-liquid liquid-gas gas-liquid liquid to solid solid-gas gas-solid
freezing evaporation condensation melting sublimation deposition
how do you measure the density of an irregular object
use a displacement can to get the volume and then use an electronic balance to get the mass
how do you measure the density of a regular object
you place it on a balance to get the mass and measure it to get the volume
what does the word specific refer to in specific heat capacity
the heat in degrees celsius
what happens to particles during a change of state
bonds are broken/formed.
what is the difference between latent heat of fusion and latent heat of vaporisation
vaporisation describes a change of state into a gas
fusion describes the change of state into anything else
what happens if you add thermal energy to particles
bonds break therefore potentially resulting in a change of state
