This is due to the fact that there is little food (flying insects) for them to eat. If they stayed awake in a warm home, without hibernating, then they would starve. We can begin the bat exclusion process during the winter months.
Mean free path of molecules in a gas. The molecules in a gas are assumed to be in continuous random motion making collisions with each other and with the walls of the container. The mean distance that the molecules travel between one collision and the next is called the mean free path of the molecules.
That question is answered by the kinetic molecular theory of gases. The kinetic molecular theory of gases is stated in the following four principles: The space between gas molecules is much larger than the molecules themselves. Gas molecules are in constant random motion. The average kinetic energy is determined solely by the temperature. NOTE: This statement implies that all molecules have the same kinetic energy at a given temperature, regardless of their mass.