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Contents
*- Properties of &ases+ &as Pressure*-2 #he "iple &as )a.s
*-/ Coinin1 the &as )a.s+
#he !deal &as Euation and#he &eneral &as Euation
*-3 (pplications of the !deal &as Euation
*-4 &ases in Cheical $eactions*-* i5tures of &ases
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Contents
*-* i5tures of &ases*-7 6ineticolecular #heory of &ases
*-8 &as Properties $elatin1 to the
6ineticolecular #heory
*-9 'onideal :$eal; &ases
Focus On Earths Atmosphere
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#he 1aseous states of three halo1ens
P> ? constant
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Relating Gas Volume and Pressure Boyles Law. #he
volue of a lar1e irre1ularly shaped, closed tan can edeterined< #he tan is first evacuated and then connected to a
40
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EXAMPLE 6-4
P>? P2>2 >2? P>P2
? *93 ) >tan? *33 )
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CharlesFs )a.
Charles 787&ay-)ussac 802
> # > ? #
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"tandard #eperature and Pressure
&as properties depend on conditionsflas? H2=dH2= ? :/8
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Use the Gas Equation:
P> ? n$# P> ?
$# ?
P>$#
?:0
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&as Densities
P> ? n$# and d ? >
P>?
$#
P
$#>
? d ?
, n ?
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*-4 &ases in Cheical $eactions
"toichioetric factors relate 1as uantities to
uantities of other reactants or products'
/P
2u
umis the odal speed
uavis the siple avera1e
urms
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Pressure
/$#u
u/$#
u-$#/
u-/
,
P>
r-s
2
2
(
2(
(ssue one ole+
P>?$# so+
$ ? +
$earran1e+
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Distriution of olecular "peeds
/$#u r-s
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Deterinin1 olecular "peed
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#eperature
:#;$
2
/e
e
/
2$#
;u-2
,:/
2u-/
,P>
(
22
(
$
$
odify+
P>?$# so+
"olve for e+
(vera1e inetic ener1y is directly proportional to teperatureQ
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*-8 &as Properties $elatin1 to the
6inetic-olecular #heory
Diffusion
'et rate is proportional toolecular speed