Does eqbm. constt. have any unit?In some books(eg.Arihant)it is given that it doesn't have a unit only when ?ng=0.Is it Correct?Thank you.

Dear Chandan

Unit of equilibrium constant depends upon type of reaction

if in a reaction number of molecules is not changing then equilibrium constant has no unit.

For example

 N₂ + 3H₂  ----> 2NH₃

unit of equilibrium  constant =liter² mol^-2

  and for reaction N2 +O2 -----> 2NO

 equilibrium constant has no unit  ( since number of molecules is not changing)