non-ideal gas

For rarefied non-ideal gases, approaches such as the cluster expansion use perturbation theory to include the effect of weak interactions, leading to a virial expansion.

We expect these observations will greatly contribute to improve our knowledge of these objects, in particular the current chemical evolution models and the physics processes of non-ideal gases.

Correspondence of phase space volume to numbers of QM states: classical partition functions and densities of states.Many possible applications including non-ideal gases.

Additionally, the shock standoff distance varies drastically with the temperature for a non-ideal gas, causing large differences in the heat transfer to the thermal protection system of the vehicle.

In non-ideal gases, such as a van der Waals gas, the proportionality is not exact, and there is a slight dependence of sound velocity on the gas pressure.

The difference between activity and other measures of composition arises because molecules in non-ideal gases or solutions interact with each other, either to attract or to repel each other.

With the energy states and the partition function, the fluid particle specific heat capacity c is the summation of contribution from various kinetic energies (for non-ideal gas the potential energy is also added).

Classification of Data from Non-Ideal Gas Sensors, In Proceedings of the Australian Conference on Neural Networks, Sydney, Australia, pp 61-64, Feb (1995)

The point at which this occurs is known as the FLORY or THETA point and is in some ways analogous to the Boyle point for a non-ideal gas.

Quantum gases are the focus of many of the world's leading physicists, but unlike Dr. Thywissen, no one else is equipped to fully investigate small-ensemble physics such as shell structures, low dimensionality and non-ideal gases.

The equipartition theorem may also be used to derive the energy and pressure of "non-ideal gases" in which the particles also interact with one another through conservative forces whose potential U(r) depends only on the distance r between the particles.

The above discussion is based on the ideal vapor-compression refrigeration cycle, and does not take into account real-world effects like frictional pressure drop in the system, slight thermodynamic irreversibility during the compression of the refrigerant vapor, or non-ideal gas behavior, if any.

The inversion temperature in thermodynamics and cryogenics is the critical temperature below which a non-ideal gas (all gases in reality) that is expanding at constant enthalpy will experience a temperature decrease, and above which will experience a temperature increase.

For ideal gases, the entropy of mixing does not depend on the degree of difference between the distinct molecular species, but only on the fact that they are distinct; for non-ideal gases, the entropy of mixing can depend on the degree of difference of the distinct molecular species.