Introduction to Colloid and Surface Chemistry |
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Page 28
... OSMOTIC PRESSURE The measurement of a colligative property ( i.e. lowering of vapour pressure , depression of freezing point , elevation of boiling point or osmotic pressure ) is a standard procedure for determining the molecular weight ...
... OSMOTIC PRESSURE The measurement of a colligative property ( i.e. lowering of vapour pressure , depression of freezing point , elevation of boiling point or osmotic pressure ) is a standard procedure for determining the molecular weight ...
Page 30
... osmotic pressure will be too small to permit sufficiently accurate measurements . Osmosis takes place when a solution and a solvent ( or two solutions of different concentration ) are separated from one another by a semipermeable ...
... osmotic pressure will be too small to permit sufficiently accurate measurements . Osmosis takes place when a solution and a solvent ( or two solutions of different concentration ) are separated from one another by a semipermeable ...
Page 31
... osmotic pressure on concentration ( 1 ) A linear high polymer in a good solvent ( 2 ) The same polymer in a poor solvent ( 3 ) A globular protein in aqueous solution methods for measuring osmotic pressure27 . A simple set - up for ...
... osmotic pressure on concentration ( 1 ) A linear high polymer in a good solvent ( 2 ) The same polymer in a poor solvent ( 3 ) A globular protein in aqueous solution methods for measuring osmotic pressure27 . A simple set - up for ...
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acid adsorbed adsorption adsorption isotherm approximately aqueous behaviour Brownian calculated cell charged surface chemisorption cm-¹ cm³ coefficient colloidal dispersions colloidal particles colloidal systems constant contact angle counter-ions curve cylinder decreases deflocculated deformation depends detergent diffusion dispersion medium distance droplets effect electrical double layer electrode electrolyte emulsifying equation equilibrium example Figure film flocculation flocculation concentration flow hydrocarbon chains hydrophilic increase interaction interface intrinsic viscosity ionic ions isotherms light scattered material measured membrane method micelles mixed film molecular weight molecules monolayer monomolecular motion O/W emulsions orientated osmotic pressure physical adsorption plate polymer polymerization pores porous potential energy potential gradient protein ratio relative repulsive sample sedimentation shear soaps sodium solid surface soluble solution solvation solvent spherical particles stability Stern layer stress surface tension surface-active surfactant temperature theory thermal thixotropic valency vapour pressure velocity viscoelastic viscometer volume W/O emulsions Waals wetting zero zeta potential