Question

In an isotropic gas with no preffered direction of motion of molecules

Answer 1

Explanation:

Isotropy refers to the behavior of some physical quantity with respect to a rotation in space. If some physical quantity is the same in any direction, we say that is isotropic. Isotropy is not only a propriety of a gas at thermodynamic equilibrium and in absence of fields. Isotropy is also a property of the space, of some media, and others. Isotropy in a state of a gas, is a statistical property, and good statistics you can do only for a large number of items. By the way, if the gas is not at equilibrium, the distribution of the velocities may be non-isotropic.