Problem

Calculate ΔHrxn for the reaction: CH4( g) + 4 Cl2( g)¡CCl4( g) + 4 HCl( g) Use the following reactions and given ΔH’s: C(s) + 2 H2( g)¡CH4( g) ΔH = -74.6 kJ C(s) + 2 Cl2( g)¡CCl4( g) ΔH = -95.7 kJ H2( g) + Cl2( g)¡2 HCl( g) ΔH = -92.3 kJ

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