Reversible reactions
Video clips and animations
- Sublimation of ammonium chloride
Ammonium chloride sublimes because it breaks into ammonia and hydrogen chloride on heating, and recombines again when it cools further up the tube. This isn't a very good bit of video and the commentary is impossible to understand, but it does show exactly what happens. Ignore the test with litmus paper. YouTube - The effect of temperature on the NO2 - N2O4 equilibrium
A simple, clear demonstration, but without a full explanation. YouTube
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© Jim Clark 2017
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