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The mean free path is defined as the average distance travelled by a molecule between two successive collisions with other molecules. It is a fundamental concept in kinetic theory and statistical mechanics, as it connects microscopic molecular motion with macroscopic transport properties such as viscosity, diffusion, and thermal conductivity. To obtain an expression for the mean free path in the zeroth order approximation, a simple model of a gas is considered. The gas is ___ ______ __________ _____ ____ ________ ___ _____ _______ ____ ________ _________.
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