Eo= Standard Electrode Potential ; R = Gas Constant ; F = Faraday's Constant ; Keq = Equilibrium Constant ; T = Temperature ; n = Number of electrons involved in the cell reaction ;
λ= Initial wavelength of the photon before scattering; λ' = Final wavelength of the photon after scattering; θ = Scattering angle; h= Plank's constant ; me = Rest mass of an electron; c = speed of light in vaccum
R1 = Rate of effusion (or diffusion ) of the first gas ; R2 = Rate of effusion (or diffusion) of the second gas; M1 = Mass of the first gas; M2= Mass of the second gas