A complete summary of edexcel a level physics ’thermodynamics’ notes, handwritten by an A* physics student (2024), with definitions and diagrams. These notes are a combination of my teachers, physics and maths tutors and further reading to form a complete set of thorough notes.
↑LETODALLEIDGE
specific heat
capacity - amount of energy required to increase the temperature
without
&.
of lkg of a substance
by 1C/1K
changing its state
-E =
mc@ -E =
Com
-
specific latent heat amount of required to
change the state
Ikg
-
energy of
without
of substance
increasing temperature
/
O
·
latent heat of Jusion
②
·
latent heat of vaporisation
·
has Ep than solid
gas
a
greater a
↓
ideal gas Ep
=
0
negativeEp
energy
internal -
equal to the all the Er and Ep of its particles
energy sum of
>
-
En distributed
and Ep are
randomly
mnimuernal
-
energy changes
it
when
summ
of substance
changes ,
while Er
because
I of the system changes is constant
3
absolute zero-when particles have En =
0 OK =
-273
(at O Kelvin) ->
volume and
pressure
=
O
assumptions
mmmgas
negligible
·
volume molecules is compared to volume
of of gas
·
duration time collisions
of collisions is negligible compared to between
·
collisions
motion of molecules is random
,
and
they experience perfectly elastic
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