One litre of water compared to one litre of air is exactly the same size however the density is different.
At low temperature and high pressure, the VOLUME of the gas will be reduced.
Helium is typically used in making a volume gas thermometer due to its low boiling point, inertness, and the fact that it remains a gas at very low temperatures. Additionally, helium has a very low thermal conductivity, which helps in isolating the gas in the thermometer from its surroundings.
It is less
Gas has no definite shape or volume, as it will expand to fill the container it is in. Gas particles are in constant, random motion and have low intermolecular forces. Gases are also compressible and occupy the entire volume of their container.
gas matter's characteristics is GAS
A low-density gas would have molecules that are farther apart and fewer in numbers per unit volume.
Compression by definition is raising the pressure in order to lower the volume. It would be pretty impossible to compress a gas using low pressure. Of course, low pressure is relative, and it depends on how far you want to compress it. Eventually, the pressure will be high enough that the gas will form a liquid.
Real gases behave most like ideal gases under conditions of low pressure and high temperature. At low pressures, the volume of gas molecules is significant compared to the volume of the container, and at high temperatures, intermolecular forces are minimized, allowing the gas molecules to behave more independently.
No, the volume of gas cannot be zero according to the kinetic theory of gases. Gas particles are in constant motion and have a non-zero volume because they occupy space. Even at extremely low pressures or temperatures, there will still be some volume occupied by gas particles.
No, that's why you call it real gas. For an ideal gas the size of the particle, that means the volume of interaction is zero, for real gases not. An effect of real gases is the cool down (or heat up) of an gas which is expanded (compressed). Another effect is that you can get liquids.
A low-density gas would have molecules that are farther apart and fewer in numbers per unit volume.
The ideal gas law does not specify the intermolecular forces between gas particles or the volume of the gas particles themselves. It also does not account for the presence of real gas behavior, such as deviations at high pressures or low temperatures. Additionally, the ideal gas law assumes that gas particles have zero volume and that they do not interact with each other.