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22 September, 11:46

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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  1. 22 September, 12:14
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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.
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