A sealed glass tube is filled with NO2(brown) and N2O4(colorless). When the tube is inserted in...
A sealed glass tube is filled with NO2(brown) and N2O4(colorless). When the tube is inserted in an ice bath color becomes lighter, but it turns dark brown when the tube is put in a hot water bath. Explain this observation. Is this reaction exothermic or endothermic? (10 points)
NO2(brown) ⇌N2O4(colorless)
Homework Answers
NO2(brown) <===> N2O4(colourless)
When the tube is inserted in an ice bath color becomes ligher, it means the heat energy produced by the reaction is obsorbed by the ice bath.
Therefore, the reaction is exothermic reaction
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