Nonequilibrium velocity distribution and reaction rate in the hot 18F+H2 reaction

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Abstract
The nonequilibrium velocity distribution and reaction rate in the hot 18F+H2 reaction are studied with the realistic cross sections by solving the time-dependent Boltzmann equation with the Monte Carlo simulation. The explicit time-dependent velocity distribution, temperature, rate constant, and yield from initial to steady states are obtained. The effects of the initial hot-atom velocity distribution, temperature, and the ambient temperature and the isotope effect on the rate constant are investigated. A high-temperature steady state does not exist.