Answer to Question #123679 in General Chemistry for Uzair

Question

Q1: Nitrogen monoxide reacts with oxygen to form nitrogen dioxide.
If this reaction is investigated in a closed system, a dynamic equilibrium is established. 2NO(g) + O2(g) 2NO2(g)
(a) Explain why it is important to have a closed system to establish a dynamic equilibrium

Answer 1

The system must be closed to prevent any of the components from escaping. If the system were open, the gaseous species would escape into the atmosphere, and the equilibrium could not be established.