Question

What is the equilibrium constant of the following reaction: 4NH3 + 5O2 → 4NO + 6H2O?

(a) [NO][H2O]/[NH3][O2]

(b) [C]^c[D]^d/[A]^a[B]^b

(c) [NO4[H2]^6/NH3]^4[O2]^5

(d) [NO]^4[H2O]^6/[NH3]^4[O2]^5

This question was posed to me in my homework.

My question is from Law of Chemical Equilibrium and Equilibrium Constant topic in chapter Equilibrium of Chemistry – Class 11

Answer 1

Correct answer is (d) [NO]^4[H2O]^6/[NH3]^4[O2]^5

The explanation is: the above given chemical reaction 4NH3 + 5O2 → 4NO + 6H2O is in the form of aA + bB → cC + dD. We know that the equilibrium constant of this reaction is [C]^c[D]^d/[A]^a[B]^b, show the required answer is [NO]^4[H2O]^6/[NH3]^4[O2]^5.