A hypothetical gas whose molecules occupy negligible space and have no interactions, and which consequently obeys the gas laws exactly.
- ‘In the case of an ideal gas (whose molecules do not interact) there will be no change in internal energy either so.’
- ‘For gases, the standard state is the ideal gas at standard pressure.’
- ‘However, in the case of compressed gases, the compressibility at high densities falls to a small fraction of the value predicted for the ideal gas.’
- ‘An underlying premise is that an ideal gas obeys the gas laws perfectly, and its behavior may be adequately described by kinetic theory.’
- ‘Even though no ideal gases exist, real gases, for the most part, adhere to the principles outlined above.’
We take a look at several popular, though confusing, punctuation marks.