Question

PLEASE SHOW ME HOW TO DO IT, USING ICE METHOD CLEAR AND COMPLETE SOLUTION would really help a lot thanks!

Answer 1

N2 + 3H2 <-------------> 2NH3

There is no point using ICE method because given concentrations are in equilibrium. Had any conc be at inital, then x would have been considered as x and the equilibrium conc would be calculated.

For this reaction , Kc = [NH3]²/[N2][H2]³

so, given Kc = 1.8E4

[N2] = 0.015M

[NH3] = 2.00M

so, 1.8E4 = [2]²/[0.015][H2]³

[H2]³ = 0.0148

[H2] = 0.246M = equilibrium conc of H2