Dinitrogen tetroxide: dissociation equilibrium (N₂O₄ ⇌ 2 NO₂ is endothermic dissociation; brown colour intensifies on heating (more NO₂).)
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N₂O₄ ⇌ 2 NO₂ is endothermic dissociation; brown colour intensifies on heating (more NO₂).
What each symbol means
| Symbol | What it stands for |
|---|---|
| Kp | Pressure equilibrium constant |
When to use this
Forward reaction consumes bond; Le Chatelier: heat shifts to NO₂ side.