Summary Physics Module 3 — Particle Model of Matter

DENSITY is the mass
of a substance per unit of volume
. Specific heat
capacity is the amount Specific latent heat is the am

of energy required to raise the energy required to chan
the

goryo
°

temperature of 1kg of a substance by 1 .
C
Meg asubstance without
- -
a


density-mass OR p
= m intemperature
.
at the
(kg)
maslegaet
↑ volume v mass
3 delta -
g/cm ↑
reg/m3 CM
3
~
=


↑ -E
= rx(o
m3 I in
energy (5)
SHC change specific l
change in
Enermal) energy (5/leg') temperature
( C)
°
heat

ranged equations for
mmm DENSITY :

(5) Cof that s

V m ranged equations for SHC
mmm :
ranged equations f
m
1xV
=
m =



&
= ) mxto
E
O
m
E =
=
=
m =
mxC




tempercuature
* When there is a
change ofstate
-
,

temp .
= constant
-




↑P E
dre
.
.




are Trecific

PARTICLE MODEL
Wh
↑
↑P E th
latent weat
(l -9)
.
.




gVAPOURISATION
k ch
↑ ↑ d


IE specific latent heat
SFUSION
requires more energy


(s-l)




OF MATTER
Pressure is
>
dir
:
as the tem

Bond-breaking >
-
requires energy
·


internal
↳
e
energy is put in (ENDOTHERMIC) 1
more colli

Bond-making releases
·
>
-
energy 2
faster mov
↳
energy is
given out (EKOTHERMIC
gas
N/m
ran
m
=
N
Particle Model (HT)

E
LIMITATIONS Of ↑ /


·
=




tfu
T op
or 2
↳ no forces shown between atoms / A
· 240 M
posito also pat
-



↳ atoms as
spheres changing -



↳ atoms are solid -
states
V- v
SYSTEM