bond enthalpy to reaction enthalpy. CH4 + 4Cl2 → CCl4 + 4HCl

bond enthalpy to reaction enthalpy. CH4 + 4Cl2 → CCl4 + 4HCl

Calculate enthalpy of reaction from bond energy

결합엔탈피로 반응엔탈피 계산. CH4 + 4Cl2 → CCl4 + 4HCl

What is the enthalpy of the reaction

CH4(g) + 4Cl2(g) → CCl4(g) + 4HCl(g)

ΔH_rxn = Σ(절단 결합의 결합 엔탈피) – Σ(생성 결합의 결합 엔탈피)

( 참고 https://ywpop.tistory.com/3729 )

= [4(C–H) + 4(Cl–Cl)] – [4(C–Cl) + 4(H–Cl)]

= [4(413) + 4(243)] – [4(339) + 4(432)]

= –460 kJ

---> 1 mol CH4 반응 또는 1 mol CCl4 생성 기준이라면,

= –460 kJ/mol

답: –460 kJ/mol

[키워드] 결합엔탈피로 반응엔탈피 계산 기준