Question

Consider the reaction CO(g)+NH3(g)⇌HCONH2(g), K=2.70 at 550 K If a reaction vessel initially contains only CO and NH3 at partial pressures of 3.00 bar and 3.00 bar, respectively, what will the partial pressure of HCONH2 be at equilibrium?

Answer 1

GIven equilibrium reaction

CO(g) + NH₃(g) ⇌ HCONH2(g) Using ICE table

Inital, I 3.00 bar 3.00 bar 0 bar

Conversion, C -x -x +x

Equilibrium, E 3-x 3-x x

Let us write the equilbrium constant

  

Now plug in the values in the above formula

By solving, x we will get

x = 2.11

Here partial pressure of HCONH₂ = x = 2.11 bar