N₂O₄(g) (colourless) ⇌ 2NO₂(g) (brown) is endothermic in the forward direction. What is seen when the equilibrium mixture is heated?
Correct answer B. The brown colour deepens
Explanation
Raising the temperature favours the endothermic forward reaction, so more brown NO₂ is formed and the colour of the mixture becomes darker.
Answer checked How we write and check questions
Discussion