Consider the reaction n2o4 (g) →2no2 (g) where n2o4 is colorless and no2 is brown. at a temperature of 5∘c, the reaction is colorless at equilibrium. this indicates that the equilibrium constant for this reaction at this temperature is

This indicates that the equilibrium constant for this reaction at this temperature is less than 1.0 (< 1.0).

Explanation:

When the equilibrium constant (K):

K [products].

K = 1 → [reactants] = [products].

K > 1 → [reactants] < [products].

Since the reaction is colorless (color of N₂O₄), it is shifted towards the reactants which means that [reactants] > [products].

So, K < 1.