Chemical equilibrium — Question 17

QUESTIONS 17–18 Questions 17–18 refer to the relationship between the concentration of nitrogen (N₂), hydrogen (H₂) and ammonia (NH₃) in a closed system, as shown.

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QUESTION 17

Determine the equilibrium law expression (K_c) for the reaction.

[ ] 2 NH 3

(A) $\mathrm{K}=$ c [ ] [ ] N 3 H 2 2

2 [ ] NH 3

(B) $\mathrm{K}=$ c

3 [ ][ ] N H 2 2

[ ] 6 NH 3

(C) $\mathrm{K}=$ c [ ] [ ]

2 N 6 H 2 2

6 [ ] NH 3

(D) $\mathrm{K}=$ c 2 6 [ ] [ ] N H 2 2