Relative stabilities of radicals CH3CH2CH2-—H CErCI ch H △FP=+94.5km2三 AH =+98 kcal mol- Propyl radical CH3CHCH3 HrCHCh3 Ho Isopropyl radical CH3 2 radical CH. 3 CH3CCH3 CHCCH3 +h. △Ho=+91 kcal mol H tert-Butyl radical 3° radicalRelative stabilities of radicals CH3 CH2 CH2 H CH3 CH2 CH2 + H Propyl radical 1 o radical H o = +98 kcal mol -1 CH3 CHCH3 H CH3 CHCH3 + H H o = +94.5 kcal mol -1 Isopropyl radical 2 o radical CH3 CCH3 CH3 H H o = +91 kcal mol -1 CHCCH3 CH3 + H tert-Butyl radical 3 o radical