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Summary A Level AQA Physics Thermal Physics revision notes

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In depth notes on thermal physics including diagrams, photos and examples

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~
Kelvin ->
Celcius -

273 15 .
Latent fleat Gas Laws



1
Kelvin Energy P
273 15 required to the State
Celcius
Change
+
DIRECTLY PROPORTIONAL to presence
-
>


Temp
.




of material without
Specific Heat required to lkg any change with CONSTANT VOLUME
capacity
a
energy
-



of of temperature PX
raise temperature
Y5kg 1kg material
by 11 (1 )
%

pressure is caused
by gas Molecules COLLIDING



specific heat capacity without
of
a
=M Latent
with surfaces of the

↳ affected
container
T
Q m change TEMPERATURE VOLUME OF CONTAINER
by
=


Energyheat
,




State
ja I ↳change I
in
temp NUMBER OF GAS PARTICLES


energy
mass of
(Kor'd Latent heat of
PV
p
4 K
=

substance
required to
=




Energy
,



change (liquid)(g)
-

FUSION
(5) of sud
1kg T
Melt K,
P = =
12
First law of thermodynamics Internal of
energy
F 19
-- a


system is increased when
Latent heat of Energy required T =
KV orV =
KT
=




VAPOURISATION
energy is transferred to it to
vapourite /19 Pressure (Pa) =
PU
of ligid
by heating or when work
-




:
F




-


I
is done. > Boltzman Constan
-




Method of misctures Grate
↓ Temperature (1

paythermo
1 :
example a
number
Cold water hot water of molecules
-




Thermal
Y insulation Physics a
g. [mol of Nitrogen
60 e
859 Missed 870 mised known
quantities of
.



we
.




74 + cold
18 C
779 not
°

water
.


Ice cube Ice -15 Calculate pressure
.
,

in water
%
54 Hot water

old water
lost
energy
to the PV =

(nxNa)kT
is
-
= water g cons
Q -
.



Q
of
cold 70 C ° no
moles
Arogadros n
constant (6 .
02

energy
Energy lost
by water Energy gained by the ice
Gold
SH)
M
=
= M
?

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