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Chemistry – Class XII – Formulae & Solutions – Depression in Freezing Point, Dissociation of Solute, Osmotic Pressure, Relative Lowering of Vapour Pressure, Elevation of Boiling Point, Van’t Hoff Factor, Association of Solute & Henry’s law – Very Useful f$2.99
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Chemistry – Class XII – Formulae & Solutions – Depression in Freezing Point, Dissociation of Solute, Osmotic Pressure, Relative Lowering of Vapour Pressure, Elevation of Boiling Point, Van’t Hoff Factor, Association of Solute & Henry’s law – Very Useful f
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NEET, JEE & Other Engg or Medical Entrance
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NEET, JEE & Other Engg Or Medical Entrance
Chemistry – Class XII – Formulae & Solutions – Depression in Freezing Point, Dissociation of Solute, Osmotic Pressure, Relative Lowering of Vapour Pressure, Elevation of Boiling Point, Van’t Hoff Factor, Association of Solute & Henry’s law – Very Useful for Students studying in Class XI...
(A) n →
nA
1+ (n −1)
i= ( = degree of dissocition)
1
JI
PAo X A + PBo X B
➢ P =
sol
0
Raoult’s law
(PB − PA )X B + PA
o o
➢ Osmotic pressure
= CRT
LA
For isotonic solution, 1 = 2
1 YA YB
➢ = +
Psol PAo PNo
➢ Relative lowering of vapour pressure
PAo − P
= ( B = mole fraction of solute)
A
B
PAo
PA B PB
➢ YA = ;Y =
PA PT
B
Where YA and YB are mole fraction in vapour phase and P A = PAo X A : PB = PBo X B
➢ Elevation of boiling point
Tb = K b
m
RT20 RT2M
Kb = = A0
100I vapour 1000H vapour
Where, m = molality
MA = molecular mass of
solvent
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