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When this reaction in equilibrium is heated, a red/brown color persists. what is true about this reaction? 2no2( g. ⇋ n2o4( g. brown/red colorless
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When this reaction in equilibrium is heated, a red/brown color persists. what is true about this reaction? 2no2(

g. ⇋ n2o4(
g. brown/red colorless

User Matthew Vincent
by
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1 Answer

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NO₂ is a brown gas while N₂O₄ is colorless. If heating causes a brown color to persist, then this means that heating causes the reaction to shift backwards and produce NO₂. Therefore, the reaction must be exothermic.
User Dibakar Aditya
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