Question

In: Chemistry

A student ran the folllowing reaction in the laboratory at 661 K: 2NH3(g) N2(g) + 3H2(g)...

A student ran the folllowing reaction in the laboratory at 661 K:

2NH3(g) N2(g) + 3H2(g)

When she introduced NH3(g) at a pressure of 0.597 atm into a 1.00 L evacuated container, she found the equilibrium partial pressure of H2(g) to be 0.879 atm.

Calculate the equilibrium constant, Kp, she obtained for this reaction.

Solutions

Expert Solution

                       2NH3(g) -------------->N2(g) + 3H2(g)

I                         0.597                     0              0

C                    -2*0.293               0.293        3*0.293

E                      0.011                      0.293         0.879

          PNH3   = 0.011atm

          PN2    = 0.293atm

          PH2    = 0.879atm

         Kp   = PN2 *P^3H2/P^2NH3

                  = 0.293*(0.879)^3/(0.011)^2   = 1644.55 >>>answer


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