Name: ID: B 12. Bonus Question (5 points) At 720°C, the equilibrium constant Ke

Question

Name: ID: B 12. Bonus Question (5 points) At 720°C, the equilibrium constant Ke for the reaction is 2.37x10 N(g)+ 3H (g)?? 2NH (g) In a certain experiment, the equilibrium coucentrations are [N-0.683 M. (H]-8.80M.and NHs] 1.05 AM. Suppose some NH, is added to the mixture so that its concentration is increased to 3.65 M a) Use Le Chatelier's principle to predict (shifts product or reactant) the shift in direction of the net reaction to reach a new equilibrium. b) Confirm your predictiou by calculating the reaction quotient Qc and comparing its value with e

Explanation / Answer

Qc is called reaction quotient

If Qc <Kc then the reaction shifts towards products side

Qc=[NH3]2/[N2][H2]3

Qc=1.052/0.683*8.803=0.002368=2.37*10-3

If Qc>Kc then the reaction shifts towards reactants side

If Qc=Kc then the reaction is at equilibrium

Therefore the reaction is at equilibrium

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