Chemistry Practice Problems Enthalpy of Formation Practice Problems Solution: Use the information provided to determine ΔH°rxn f...

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Solution: Use the information provided to determine ΔH°rxn for the following reaction: CH4(g) + 3 Cl2(g) → CHCl3(l) + 3 HCl(g             ΔH°f (kJ/mol) CH4(g)        -75 CHCl3(l)    -134 HCl(g)         -92 A) -151 kJ B) -335 kJ C) +662 kJ D) +117 kJ E) -217 kJ

Problem

Use the information provided to determine ΔH°rxn for the following reaction:

CH4(g) + 3 Cl2(g) → CHCl3(l) + 3 HCl(g

            ΔH°f (kJ/mol)

CH4(g)        -75

CHCl3(l)    -134

HCl(g)         -92

A) -151 kJ

B) -335 kJ

C) +662 kJ

D) +117 kJ

E) -217 kJ