[填空题]
Hydrocarbons are commonlg0s2 nik.rv0ayo. hb*9ejdnle/n- 4r :sd5pkx used as fuels.
1.1Define average bond enthalpy.
1.2Write a balanced chemical equation for the complete combustion of propene ($CH_3CHCH_2)$
2.Using section 11 (Section 12- 2025 Syllabus) of the data booklet, calculate the enthalpy of combustion for propene.
ΣΔH$_{BE}^θ$(bonds broken)= kJ mol$^{-1}$ ;ΣΔH$_{BE}^θ$(bonds formed)= kJ mol$^{-1}$;ΔH=- kJ mol$^{-1}$
Important note: The section numbers mentioned in the video solution are specific to the 2024 syllabus.
You can refer to the question stem to find the section numbers for the 2025 syllabus.