The constant k in Coulomb's law depends on

Coulomb's law is analogous to

Coulomb's law is valid for

Value of vander Waal's constants a and b for a gas depends upon :

The rate constant of a reaction depends on

The constant 'a' Mosely's law sqrt(v) = a(Z-b) for k_(alpha)X- rays is related to Rydberg constant R as ( 'c' is the speed of light)

The law goverening electrostatics is coulomb's law.In priciple coulomb's law can be used to compute electric field due to any charge configuation .In pracitce however it is a formidable task to compute electric field due to uniform charge distributions .For such cases Gauss proposed a theorem which states that ointbar(E).bar(ds)=(q)/(epsilon_(0)) where ds is an element of area directed across the outward normal for the surface at every point .The integral is called electric flux.Any convenient surface that we choose to evalute the surface integral is called the Gaussian surface. The SI unit of electric flux is

The equilibrium constant does not depends on the initial concentrations of the reactants but depends on …………. . of various reactants and products at ……….. .

Write Coulomb.s law in vector form.