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Give the ΔH value for the decomposition of phosphorus pentachloride as shown in the reaction PCl5(g)+67 kJ→PCl3(g)+Cl2(g) .?

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  • 1 month ago

    Because the heat is written on the reactant side, this reaction is endothermic. Therefore ΔH = +67 kJ/mol

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  • 1 month ago

    ΔH  =  −67 kJ 

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