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Chapter 4 Notes

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GasCharacteristics
volchanges with pressure temperature
lowdensities
Gaspressure andMeasurement
Atmosphericpressure rises fromtheforceputbyatmospheric
gases onearth'ssurface
Atmosphericpressuredecreaseswithaltitude
Typesof Manometers
closed end
open end
when PgascPatm whenPgas Path
PgasePatm
Oh Pgas Patmtoh
pressure
Ea
CommonUnits
of Pressure
Lab Devices for measuringgaspressure
Barometer
ameasure
atmosphericpressure
mercurystopsflowingoutwhensurface ofmercury
intubeis 760mmabovethesurfa ie ofmercury
in dish
Even
Pag Paton
tubediameter's diff meriury will still
ifsame
rise to
height
Weightofherany is greater in widertube so is
area thus
pressure ratio weightdarea
Unitfor mercurypressure mmHg
Thehigher it is the lesspressure
ex sea levelatmosphericpressure760mm
fly
465
mmHg
Robson
Mount
Gas laws
Variables
pressure I pl
i mutts
conversions
12th 760h Hg 760Torr
Torr ath
1 01325
K
temperature it
volume ul i c m3 I
moles
amount in t
la kPa bar
1072 101 3254172
1 01325bar
it it
No idealgas exists when pressureis high tempit low
Vol pressure
Boyle's Law 7
to
Hproportional
ypf
Ppt
V9
LI
a
at
Prva
rot temp
Charles Law
Iv
instantly
or
or
Avogadro's law
Y
instant
ocean 15K
40
temp and fretbar
volume amount
at
fixed
pre
of gas
VP NP
so
In
fixed T and P
less of breathing
ex
pro
ribcage in air out
standard molarvol
22h
IdealGas tow
fixed
HII
h
JT
Boyle's law
lungs
u.ro
t
I mot of idealgas at fixed
pm
o 3144i
TIP
ok
other Fifa
Rearrangements
ÉI
R constant
constant R
Charles Law
Avo's law
ofideal Gas Lau
mammtight EI
Eth
fd tandd.tt
I
renren.at
a
1
or
YIl
IE ii
Gasmix homogeneously
Eachgal in mixture site like it's theonlygas present
Partial pressure pressureexerted from eachgas
Pressuretotal
Xa
II
Past
sum
of partial pressure
Ptot PatPptPc
Xa Paxton
MII MII t
kiting
Xa molefraition of A
bail
Kinetic MolecularTheory Model for
Root Mean Squarespeed
or
II
II
Effusionand Diffusion
Effusion process when a gas es tape through a small hole
from container to eva atedspare
law
fate of effusion
at
or
Effigy
Diffusion
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