presence of cohesive forces between liquid molecules and the surface tension of the liquid. q2 what happens when a soap bubble is charged? when a soap bubble is charged, it expands. q3 what is the dimensional formula of surface tension? the dimensional formula of surface tension is: [ml 0 ...
Derivation of a viscous KP equation including surface tension, and related equationsPhysics - Fluid DynamicsHervé Le MeurarXiv
The value of surface tension of water is found to be 25 dyne/ cm. express this value in newton/m. A scoop bubble has a radius of 0.05 m if the pressure difference between the inside and outside is 2 Pa what is the surface tension of the soap film? What is the surface area of a...
SoapBubble •Considerasphericalsoapbubbleofradiusr.•Ifwethinkofthesurfacetensionasafreeenergyperunitarea,thenthefreeenergyassociatedwiththesurfaceis F=4πr2g.•Iftheradiusischangedbydr,thecorrespondingfreeenergychangeisdF=8πrgdr.•Thusthefreeenergyincreaseswithincreasingradius.•Inequilibrium,this...
Soap Bubble • Consider a spherical soap bubble of radius r. • If we think of the surface tension as a free energy per unit area, then the free energy associated with the surface is F = 4πr2g. • If the radius is changed by dr, the corresponding free energy change is dF =...
The limiting law at infinite dilution for the change of surface tension of a solvent due to the addition of a strong electrolyte is derived in the most general case from the linearized Poisson-Boltzmann equation. The analytic form of the limiting law is shown to be extremely sensitive to the...