begin mathsize 48px style W equals z. i. t end style

W = Weight produced at an electrode ; z = Electrochemical equivalent  i = Current ;  t = Time ; 

begin mathsize 36px style E equals A over V end style

E= Equivalent Weight; A= Atomic Weight ; V= valency ; 

begin mathsize 36px style E to the power of o equals fraction numerator R. T over denominator n. F end fraction log K subscript a end style

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 ; 

begin mathsize 36px style lambda equals fraction numerator h over denominator m. v end fraction end style

λ= De Broglie Wavelength ; m= mass ; v= velocity ; h = Plank's constant ( 6.6262 x 10-34 Js)

 begin mathsize 36px style lambda minus lambda apostrophe space equals space fraction numerator h over denominator m subscript e c end fraction open parentheses 1 minus space cos theta space close parentheses end style

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 

begin mathsize 36px style v equals fraction numerator v subscript m a x end subscript left square bracket S right square bracket over denominator left square bracket S right square bracket space plus space K subscript m end fraction end style

v= Reaction Rate ; vmax =Maximum Rate ; [S] = Substrate Concentration ; Km = Michaelis Constant

begin mathsize 36px style k equals A. e to the power of bevelled fraction numerator E subscript A over denominator R. T end fraction end exponent end style

K = Rate Constant;  A = Frequency Factor;  EA = Activation Energy;  T = Temperature; R = Universal Gas Constant ;

begin mathsize 36px style R subscript 1 over R subscript 2 equals square root of M subscript 2 over M subscript 1 end root end style

R= Rate of effusion (or diffusion ) of the first gas ; R2 = Rate of effusion (or diffusion) of the second gas; M= Mass of the first gas; M2= Mass of the second gas

begin mathsize 48px style Q equals m. s. theta end style

Q= Amount of Heat ; m= mass ; s = Specific Heat ; θ = Temperature Change (a.k.a ΔT) 

begin mathsize 36px style M equals fraction numerator W subscript s o l u t e end subscript over denominator V. M subscript w end fraction end style

M=Molarity of the Solution ; Wsolute = Weight of the Solute ; V = Volume of the solution; Mw = Molecular Weight of the solute;