When a mixture of SO2 and O2 is introduced into a reaction vessel at a temperature of 700 K, a reaction that produces SO3 occurs as: 2SO2(g) + O2(g) → 2SO3(g)
a. When do we say that the system has reached chemical equilibrium? Explain your answer.
b. Why is the equilibrium state referred to as dynamic?
c . Write the equation that shows the presence of the three species in equilibrium.