👉 In physics, "roominess" refers to the amount of space occupied by a particle or system of particles in a given volume. It is often defined as the probability density of finding a particle within that volume, and it can be quantified using the concept of the mean free path (λ), which measures how long it takes for a particle to travel through a given volume. In terms of space, roominess describes how much space there is in a particular region or configuration. It is often used
