Heats of hydrogenation as Indicators of Stability E (kJ/ mol 假想的环己三烯 实际存在的苯 +3H2 2H2+ +3H 36 232 H2+ 209 120H2 + 209 232 120 336 2H2 3H2 ( kJ / mol ) + + + 3H2 假想的环己三烯 实际存在的苯 E Heats of Hydrogenation as Indicators of Stability