Question

Explain the processes that lead to chemical equilibrium. Are all completed chemical reactions in chemical equilibrium?

Answer 1

Technically speaking

there is no 100% or 0% reactions (reverse/forward)

since there will be always a certain amount of reactant / produc tleft

recall that --> the equilibrium constant for any species:

The equilibrium constant will relate product and reactants distribution. It is similar to a ratio

The equilibrium is given by

rReactants -> pProducts

Keq = [products]^p / [reactants]^r

For a specific case:

aA + bB = cC + dD

Keq = [C]^c * [D]^d / ([A]^a * [B]^b)

Therefore

there is always some C,D,A,B

since K = cant be not defined or infinity

therefore

A -> B occurs at the same rate of B- > A in equilbiirum