Chem

The brown color associated with photochemical smog is due to NO2(g). This is involved with the following equilibrium in the atmosphere: 2 NO2(g) <===> N2O4. Predict the signs of the enthalpy and entropy changes for this reaction.

If the equation is at equilibrium should DH and DS be 0?

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  1. Delta G is zero for a reaction at equilibrium.

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  2. I understand that, but the question is asking about DH and DS, so can DS and DH not be determined as positive, negative, or 0 by that equation?

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