i. a. Kc expression:
b. For the reaction, Kc = 2.4 × 1047 at 500 K
If the value of Kc >>> 103 , forward reaction is favoured.
Hence, the given reaction will proceed in the forward direction and will nearly go to completion.
ii. a. Kc expression:
b. For the reaction, Kc = 4.2 × 10-48 at 500 K If the value of K <<< 10-3 , reverse reaction is favoured.
Hence, the given reaction will proceed in the backward direction and will nearly go to completion.