Concept of chemical equilibrium

Chemistry Level 2

Which of the following statements is NOT correct about the following reaction in a solution with the equilibrium constant $K_{C}:$ $aA + bB \rightleftharpoons cC +dD?$

K_{C}

is dependent on temperature. The equilibrium constant of this reaction is always dimensionless.

K_{C}

can be expressed as

\frac{[C]^{c}_eq[D]^{d}_eq}{[A]^{a}_eq[B]^{b}_eq}.

A,B,C,

and

D

are gases,

K_C

can be described in terms of pressure.