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Q. The average kinetic energy of thermal neutron is of the order of (Boltzmanns constant $k_{B}=8 \times 10^{-5}eV/K$)

ManipalManipal 2011Kinetic Theory

Solution:

Thermal neutron, any free neutron (one that is not bound within an atomic nucleus) that has an average energy of motion (kinetic energy) corresponding to the average energy of the particles of the ambient materials.
Average Kinetic Energy $=k T=0.03 eV$