Consider this reaction: N2+3H2-->2NH3 HAVING A CATALYST REACTION OF IRON?

Question

Which is more beneficial-adding iron before attaining equillibrium or after?why?

Answer 1

without Fe as catalyst, this reaction may not even happen, and even if it does, it will reach equi. after a VERY long time
so naturally, N2 and H2 are compressed to 200-300 atm. and Fe is added at 723-773 K (Haber's Process)
u add the catalyst first

Answer 2

my frnd ,iron in this reactions acts as a catalyst.it facilitates the reaction.but it being a catalyst has no effect on increasing the yield.so adding iron before or after is not that big a deal and won't affect the yield after equilibriuim is attained.but the reaction has to be started with iron(fe),cause without it,the reaction won't proceed.

Answer 3

Iron is a d group element( a transition element). Transition elemnts have tendency to provide a template to the reactant molecule.
The molecules are adsorbed on the surface and after the reaction product is ejected out of the cavity.
For small conc. of the reactants, the rate depend on the amount reactants but at higher conc. the reaction is a zero order kinetics

Answer 4

before reaching equillibrium as it will speed up the rate and less time will be taken to reach the equillibrium therefore rate of production of NH3 will increase

Answer 5

add it before as adding afterwards doesn't affect the equilbrm. point as it increases both forward &backward reaction to the same extent