Use the simple transition-state theory to calculate the rate constant for the hydrogen exchange reaction: H+H2H2+H The barrier height is 38.2kJmol1 at 300K. The activated complex structure is a symmetric linear arrangement of the three atoms with the internuclear distance of 0.90 1010m. The vibrational wave numbers for H3 are 2184cm1 (symmetric stretch) and 979cm1 (doubly degenerate bend). H2 has only one vibrational mode and its vibrational wave number is 4395.2cm1. The H2 equilibrium distance is 0.74161010 m. The electronic partition functions of H and H3 are 2. Given: qt=(h22mkT)3/2Vqr=h282IkTqv=1ehv/kT1