When a sample of NO2 is placed in a container, this equilibrium is rapidly established.<br>2NO2(g) N — p Block Elements Chemistry Question

Question

When a sample of NO2 is placed in a container, this equilibrium is rapidly established.<br>2NO2(g) $\rightleftharpoons$ N2O4(g)<br>If this equilibrium mixture is a darker colour at high temperatures and at low pressure, which of these statements about the reaction is true?