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Calculate ΔHrxn for the following reaction:

CH4(g)+4Cl2(g)→CCl4(g)+4HCl(g)

Use the following reactions and given ΔH′s.

C(s)+2H2(g)→CH4(g)ΔH=-74.6kJ

C(s)+2Cl2(g)→CCl4(g)ΔH=-95.7kJ

H2(g)+Cl2(g)→2HCl(g)ΔH=-184.6kJ

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