Consider the all gas reaction: H₂ + O₂ ⇄ HCl The reaction has a negative delta H. How can the production of HCl be increased by changing the volume or temperature? Explain your answer.

By decreasing both temperature and volume, the HCl production is favored.

Explanation:

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In this case, according to the given information, it turns out possible for us to rewrite the chemical reaction at equilibrium:

H₂ + Cl₂ ⇄ HCl ΔH<0

To realize it has more gaseous moles on the reactants side and also, it is exothermic. Thus, based off the aforementioned, and accordingly to the Le Cha-telier's principle, we can infer that the decrease in the temperature of the system will favor the formation of HCl as the reaction is exothermic and also, the decrease of volume will make the same effect because it favors the side with the fewer moles.

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