Question

A reaction is represented by this equation: 2W(aq)⇌X(aq)+2Y(aq)Kc=5×10^−4

a) 2W ⇌ X
b) Y ⇌ W
c) 2W ⇌ Y + X
d) X + Y ⇌ 2W

Answer 1

The equilibrium constant expression for the given reaction is Kc = [X][Y]^2 / [W]^2. Two sets of concentrations that describe a mixture at equilibrium are [W] = 1 M, [X] = 0 M, [Y] = 0 M and [W] = 0.5 M, [X] = 0.4 M, [Y] = 0.2 M.

Step-by-step explanation:

The mathematical expression for the equilibrium constant of the reaction 2W(aq) ⇌ X(aq) + 2Y(aq) is Kc = [X][Y]^2 / [W]^2.

For a mixture of W, X, and Y at equilibrium, here are two sets of concentrations:

1. [W] = 1 M, [X] = 0 M, [Y] = 0 M
2. [W] = 0.5 M, [X] = 0.4 M, [Y] = 0.2 M