ORGANIC CHEMISTRY Chapter 7 7.3A Heats of Hydrogenation Pt C=C、+H-H C-C H°=120kJ/mol HH CH H △H° Ho/Pt 115 kJ/mol CH CH CH2 CHChoCh CH H/Pt 120 kJ/mol H Department of Chemistry, Xiamen UniversityORGANIC CHEMISTRY Department of Chemistry, Xiamen University Chapter 7 7.3A Heats of Hydrogenation C C + H H Pt C C H H ∆H°≅ 120 kJ / mol C C CH3 H CH3 H C C H CH3 CH3 H CH3CH2CH2CH3 H2/Pt H2/Pt ∆H -115 kJ/mol -120 kJ/mol