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

Question

Consider the equilibrium system described by the chemical reaction below. For this reaction, Kp = 4.51 × 10⁻⁶ at a particular temperature. Calculate the value of Qp for the initial set reaction conditions: 57 atm NH₃, 27 atm N₂, 82 atm H₂.

(35)

Answer 1

Q = (NH3)² / (N₂)(H₂)³

Q = (57)² / (27)(82)³

Q = 2.18x10^-4

In case the question goes on to ask:

The reaction will proceed toward the left (reactants) since Q is > Kp