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Summary Solutions and colligative properties
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Sdluhions &Colligatve RopextiesSoluticon : A homogeneoug mixtuse ot tao as moe
substances
" Binaxy sol componend
Texnaxy so':- Thxee components
|Alloy ': Soid Sol" of tao cg mxe conmponents
These 9 types of binay sol? we shall focus
only thase in cohichsolvent is
on
iguid.
olality Molaxity
1000 dsl - Molaztyx(M o)solute
he vopoux paessuKe of a volatile substance at
a given tep is the presRe exested by the
vapouss of the suhstance in eguibaiun with
Ghot substance. is also caled satusated vapour.
poessuKe & can be measuse Only in a chsed
Vesze
A qud molecule awithin the bulk of the hawd
expeiences equal Fosce of attachon fom alL directian
but the mdecule.at te susface expenence. net
inwcsd fasce dE Such a molecule gek enogh
kE eney to oetDNe ntenal fres, then t
can mo to vapous phaEe his is called
levapoxation andt is a sutacephenomenon
tahe place ot all temp.
, occuxs_ ahen Hhe sate f exapoahon
Fquilibaiunto thexate ofcondensahon
Tblis net classed equlibaium uill
hever be atain
Subliming soids can also hae vapoLE preSste.
Propexties of Vapour Araszure.
Vaxiation coith Tamp.i Vapoux pxeRaue inareaseg
th, temp. Ais ghen hyby clauais-Clapaytn en.
|ne]- AHRR LT
AHy- mabx entbalpy
oF vapcKiSCon
Paxtial Vapour pressurei he pressure ot
Vapos of e A over so/ ofABB &B
Natuxe of liqud Votahle ad visacug ligid bave
more intoxmolecular toses loc sapous
and vice -vexsA coith volahle
kRelative Hunmidity CRH) =PatalpeS3uO of woter xl
Vapouk pressue
Vapoux presze desn't depenc on
Amaunt of lqud
Suafaee oKea ofliopid
shape oF container
-Satuxsated etad vopour peSSUKeof wnte is callet
he aqueous tension.
, Boiingi Alquic is said to boil ahen the satuahad
vapout prsssUe beccmeg caual to the eternal
pessue
can be bailed by tuo ays
) By inereasng temp Prap = ot
By decreasing Pat
The tempexaure at chich te VapouapresEure of
a liauid becomes aual to Lata is called nostna
bailing poit ox sinpdy boiling pt
thug Pest >Poat evapasaion
Soubilhs i- t is deined os he max. amount of tat
substance cohich can he dsalued in Joog savent
ot a specie temp t depends
Gi) natuneof slute & sohwent
Ltempexture lil Pressuxe.
|Efect of temp. on solability of a scid in igud
solute t salvent Soluto
B le choteliexs principle
AH<O hen àg TincreAses, solubilty
AH>O,hen as Tincseases, solubiity T
|Fressune does not have any sighificant effect
on sohubility of solids in iquid
effect cf prezsue on solubiity of gas is given
by Henets lac
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