kinetic theory(redirected from Kinetic-molecular theory)
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kinetic theory[kə′ned·ik ′thē·ə·rē]
A theory which attempts to explain the behavior of physical systems on the assumption that they are composed of large numbers of atoms or molecules in vigorous motion; it is further assumed that energy and momentum are conserved in collisions of these particles, and that statistical methods can be applied to deduce the particles' average behavior. Also known as molecular theory.