Question

A piece of zinc metal is immersed in an acidic electrolyte. The activation energy barrier for the transfer of zinc metal ions from metal surface to the bulk solution is 80.0 kj/mol. The vibrational frequency and the number of moles per unit area on the metal surface are 1012 s-1 and 10-6 mol/cm2 respectively. The value of exchange current density (a/cm2) is;

Answer 1

It may be a plane or the surface of the conc. ... When a - particles are sent thought a thin metal foil, most of them .... The bond dissociation energy of Br, is 192 KJ  ...