Abstract: | The title reactions have been investigated in a static system. The addition of acetylene to cyclopentadiene (CPD) results in formation of norbornadiene (BCH), cycloheptatriene (CHT), and toluene (T), while BCH decomposition produces CPD, C2H2, CHT, and T. Kinetic studies, comprising both product–time evolution and initial pressure variation, support a mechanism These reactions are almost certainly homogeneous and molecular in nature. Least mean square analysis of the data yield for temperatures of 525–656°K, log k?1 (1./mole·s)=7.51±0.05? (24.19±0.15 kcal/mole)/RT ln 10, and for temperatures of 584–630°K, ![equation image equation image](/cms/asset/d62cbe9a-65cd-48c6-ac85-aebb4e2ef502/tex2gif-ueqn-3.gif) |