Question

Equilibrium constant and chemical equation

Answer 1

Explanation:

K_c = \frac{[C]^c \times [D]^d \times \dots}{[A]^a \times [B]^b \times \dots} \\ \scriptstyle \text{for }

aA_{(aq)} + bB_{(aq)} + \dots \rightleftharpoons cC_{(aq)} + dD_{(aq)} + \dots

K = equilibrium constant

A, B, \dots = products

C, D, \dots = reactants

[A] = equilibrium concentration of A in moles

a = number of moles of A

\rho = number of molecules (or atoms) of R involved in the reaction

\sigma = number of molecules (or atoms) of S involved in the reaction

FROM THE WEB

Every chemical equilibrium can be characterized by an equilibrium constant, known as K eq. The K eq and K P expressions are formulated as amounts of products divided by amounts of reactants; each amount (either a concentration or a pressure) is raised to the power of its coefficient in the balanced chemical equation.