CLASS-12 BOARDS Interaction of A-B are equal to interaction of A-A
and B-B
ingmen Nanoanim Di-
De
= DA + PB
-Pi AYmix
AUnix =
= 0
0
i
STREETEEM
eg n -
Nexane + n-Heptan
xA 1 =
more fraction xA 0
=
xB 0 =
xB 1
=
By-Bharat Panchal Sir.
NON-IDEAL SOLUTION
·Bharat Pantial Sir Chemistry Puruji2.0 Positive Deviation Negative Deviation
A-B interaction
A-B interaction are weaker are
To help in our Journey than A-A and B-B interaction stronger thanA-Aanda
&Umix = tre & Unix ve
YOU CAN DONATE
= -
DUmiX=tVe & Umix = -
ve
+ PB
DA Dis DA + PB
Dis
-
X
-
-
X
De
-
=
De
=
Di- Di-
SOLUTIONS a a
Mass Percentage w2x100
~
(W(w)!. =
W, t W2 xA=1 mole Fraction (A=0 xA=1 mole Fraction (A=0
xB 0
=
xB 1
=
xB 0 =
xB 1
=
Volume Percentage (V(% =
100
x form minimum boiling for Maximum boiling
A
zeotropes a zeotropes
Mass by Volume Percentage (w() =
w2
X 100
↓Cm mL)
e.g Acelone + Ethanol acelone
e.g
alorotom
Mass fraction
X1 =
100 Nz =
wz Colligative Properties depend on number of solute
+ wz W2 Relative lowering
is
wi wit
-> a or iCB
of X.P
as
Parts per million (ppm) 106
EwaX
->
levation
= in i Kxm
Point -> DTb =16M or
Boiling
Molarity (M) Unit
Xoom moblite
=
or Depression in
=
1 Kfm
->
* Tf: km or
freezing Point
Pressure-T=COT
Molality (m) =
BxZ(g) Unit =
moles/kg
Osmotic or
RT or
iNX*XT
↳molacity is inversely proportional unit of Kb and
Kf=Kkg mol
to temperature &To -
Elevation in B.Ot
&Tb Tx T
(X)
=
Mole Fraction
-
Alf- Depression in F.Ot
AT =
Tj -
TS ↑- S.Ot
of solution
tup
Us
XA =
XB=
MA +UB kb T - B.Ot
of pure solvent
Xwxg)
DTb =
xATXB=1 mole fraction is a unitless
#
-foot of pure solvent
Fpt of solution
q, uantity DT:
-
If
-bartial pressure of gas Kfxxs Ko a moral elevation
Henry Law e
constant
p =
kuYB " motal depression
Vault Hot factor (i) constant
a mole fraction of solute
Normal Molecular mass
RAOULT'S LAN Chemistry Purujia.0= observed Molecular Mass
PACYA PBCXB is solute undergoes dissociation
PA =
PAXXA PB=bsXYr i <1 solute undergoes association
i =
1 no association no dissociation
for Volatile solute For Non-Volatile solute
PT =
PA+PB Dy PA =
DEXTCA
=
X dissociation =
Cassociation =