Download Understanding Van der Waals Forces and Colloidal Particles: Interactions and Stability and more Exercises Geology in PDF only on Docsity! L 27.1. Ans: 27.2. Ans: 27.3. Ans: 27.4. 27.5. Ans: ecture-27 What is Ha The Hamake where a and C is the The Hamak from the Va What are d Colloidal p similar par electrical ch tend to scre that while hindrance i What is har Hard spher fluids and spheres tha atoms and approximat is non zero of electroni How can Ef We have see A12 can be w A12 = – 12 π Now the ind Contact Ang Further, by c A11 = 24πd02 Further one Thus, we obs What is th curve? It signifies t molecules i. -30 Inter maker’s con r constant A nd are t coefficien er constan n der Waa ifferent type articles can ticle tend arge or (p en this attr Coulombic s responsib d spehere a es are wide solids. In t cannot ov spherical ion sugges , even whe c orbital. fective Ham n that when ritten as: d02 (γ12LW – ividual LW le Goniome onsidering γ1LW can also get erve that A12 c e physical hat at that p e they physic molecular stant? Wha can be defi he number t in the part t provides ls pair poten s of Colloid either Ele to attach t olymer mol action, form repulsion i le for steric pproximati ly used as m this theory erlap in spa molecules ts that the n they are a aker Const two blocks γ1LW – γ2LW) components try. Thus, if 1 and 2 are o A12 = √ (A11 an be express significance oint, the se ally come in Forces b t is its signi ned for a Va of atoms p icle-particl the means tial, al Stability ctrostatical o each oth ecules) atta ing a stabl s responsib stabilizatio on? odel partic the atoms ce. They m experience separation d t contact, d ant be mea of material of surface d0 is known f the same m . A12) ed in terms o of the low paration dist to contact. B etween Pa ficance? n der Waals er unit volu e pair intera to determin ? ly stabilize er in vacu ched to the e dispersion le for elec n. les in the s are simply imic the e at very c istance bet ue to stiff sured? s 1 and 2 co and interfac , then A12 ca aterial, γ11L f physically m est point in ance is min eyond this, rticles an (vdW) body me in two ction. e the intera . d or Steric um or air surface of . We may trostatic sta tatistical m considere xtremely st lose dista ween two a born repuls me in conta ial tension c n be determi W = 0, and th easurable qu the Leon imum for ei a repulsive d Surface -body intera interacting ction para ally stabili . The pres colloidal p further wan bilization, echanical th d as impe rong repuls nces. Hard toms or m ion due to ct in air or an be determ ned. erefore antities. ard-Jones p ther two su regime begin s ction: bodies meter C zed. All ence of articles t to add entropy eory of netrable ion that sphere olecules overlap vacuum, ined by otential rfaces or s. Docsity.com
