Calculate ΔHrxn for the following reaction: Express the enthalpy in kilojoules to one decimal place.
CH4(g) + 4Cl2(g) → CCl4(g) + 4HCl(g)
given these reactions and their ΔH values:
C(s) + 2H2(g) → CH4(g) ΔH = −74.6 kJ
C(s) + 2Cl2(g) →CCl4(g) ΔH = −95.7 kJ
H2(g) + Cl2(g) →2HCl(g) ΔH = −184.6 kJ
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