Introduction to Colloid and Surface ChemistryThe colloidal state; Kinetic properties; Optical properties; Liquid-gas and liquid- liquid interfaces; The solid-gas interface; Charged interfaces; Colloid stability; Rheology; Emulsions and foams. |
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Page 110
... Langmuir isotherm equation reduces to V = Vap , i.e. the volume of gas adsorbed varies linearly with pres- sure . At high pressures a limiting monolayer coverage , V = Vm2 is reached . The curvature of the isotherm at intermediate ...
... Langmuir isotherm equation reduces to V = Vap , i.e. the volume of gas adsorbed varies linearly with pres- sure . At high pressures a limiting monolayer coverage , V = Vm2 is reached . The curvature of the isotherm at intermediate ...
Page 111
... equation V = kp1 / n .. ( 5.8 ) .... where k and n are constants , n generally being greater than unity . Taking ... Langmuir equations ; however , the volume of gas adsorbed is not depicted as approaching a limiting value as in a single ...
... equation V = kp1 / n .. ( 5.8 ) .... where k and n are constants , n generally being greater than unity . Taking ... Langmuir equations ; however , the volume of gas adsorbed is not depicted as approaching a limiting value as in a single ...
Page 113
... isotherm to be steeper than that predicted accord- ing to the Langmuir equation or the BET equation . Chemisorption might involve the adsorbate gas molecules either giving up electrons to or receiving electrons from the adsorbent solid ...
... isotherm to be steeper than that predicted accord- ing to the Langmuir equation or the BET equation . Chemisorption might involve the adsorbate gas molecules either giving up electrons to or receiving electrons from the adsorbent solid ...
Contents
THE COLLOIDAL STATE | 1 |
KINETIC PROPERTIES | 16 |
OPTICAL PROPERTIES | 47 |
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adsorbed adsorption adsorption isotherm agents behaviour calculated capillary cell charge number charged surface chemisorption cm³ coefficient colloidal condensation constant contact angle counter-ions curve decrease depends detergent diffusion dispersion medium distance droplets effect electric double layer electric field electro-osmosis electrode electrokinetic electrolyte electrolyte concentration electrophoretic mobility emulsifying emulsion equation equilibrium example experimental fatty acids Figure flocculation flocculation concentration flow foam forces increase interaction interface intrinsic viscosity ions isotherms Langmuir Langmuir equation light scattered liquid lyophobic material measurements method micelles mol dm-3 molecules monolayer monomolecular nitrogen O/W emulsions phase physical adsorption polymer polymerisation pore porous potential energy protein radius ratio relative molecular mass result sample sedimentation shear silver iodide soaps sodium solid surface solvation solvent stabilising stability Stern layer streaming potential surface conductance surface tension surface-active surfactant temperature theory V/Vm vapour velocity viscoelastic viscosity volume Waals attraction wetting zeta potential