The reaction between hydrogen gas (H₂) and chlorine gas (Cl₂) to form hydrogen chloride (HCl) has a ΔH value of -92.3 kJ/mol. What is the ΔH for the reaction: 2HCl(g) → H₂(g) + Cl₂(g)?

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Chlorine gas (Cl₂)ΔHHydrogen gas (H₂)Hydrogen chloride (HCl)
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