Question

The reaction, A 2B C, has an equilibrium constant of 2000. During a reaction, the concentration of A is 0.01 M, of B is 0.2 M, and of C is 0.5 M. a. What is the reaction quotient (Q)

Answer 1

Q = 1250

Step-by-step explanation:

Step 1: Write the balanced equation

A + 2 B ⇄ C Kc = 2000

Step 2: Calculate the reaction quotient (Q)

The reaction quotient is equal to the product of the concentrations of the products raised to their stoichiometric coefficients divided by the product of the concentrations of the reactants raised to their stoichiometric coefficients. Unlike the equilibrium constant, we can use the concentrations at any time.

Q = [C] / [A] × [B]²

Q = 0.5 / 0.01 × 0.2²

Q = 1250

Since Q < Kc, the reaction will proceed to the right to attain the equilibrium.