Vibrational energy flow temperatures

Microstreaming is an event in which large amounts of vibrational energy are put into a small volume with little heating. Furthermore, microstreaming constitutes an unusual type of fluid flow associated with velocity, temperature, and pressure gradients (Laborde et al., 1998). 

Gas molecules do not actually bounce off the wall of a container (or your skin) as if it were a uniform massive structure, the way we sketched it in Figure 7.2 they collide with individual atoms at the wall surface, which are also moving because of vibrations. If the temperature of the wall and the gas are the same, on average the gas kinetic energy is as likely to increase or decrease as a result of any single collision. Thus a more accurate statement of the assumption required to derive the ideal gas law is that the walls and gas molecules are at the same temperature, so there is no average energy flow between the two. 

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