The threads are different on Nitrogen tanks. There are adapters to use a Co2 gauge on a nitrogen bottle .
Normal air is 20% oxygen, 79% nitrogen, and 1% other gasses.
Nitrogen is much more stable in all temperatures and better for high speed driving.
Liquid nitrogen is made by taking in air from the atmosphere and compressing and cooling it. Once it is cool enough, it forms a liquid. This liquid contains argon, oxygen and nitrogen. These elements are then separated and sold as a commodity. The temperature is the only difference.
The density of nitrogen is slightly higher than the density of air. This means that nitrogen molecules are more tightly packed together compared to the molecules in air.
The rubber used in tires is somewhat more permeable to oxygen than it is to nitrogen, so inflating tires with nitrogen keeps them at their recommended inflation pressure longer.
Air is approximately 80% Nitrogen, 19% oxygen and 1% others
The air we breathe is mostly nitrogen, so yes. Nitrogen acts almost exactly the same as nitrogen mixed with a little oxygen. The major difference is that nitrogen will have less moisture then straight air.
nitrogen cycle
Free nitrogen refers to the nitrogen gas (N2) present in the atmosphere, which is not readily available for use by most organisms. Fixed nitrogen, however, is nitrogen that has been converted into a form that can be utilized by plants and other organisms, such as ammonia, nitrate, or nitrite. This conversion process is often carried out by nitrogen-fixing bacteria in the soil.
All life forms need nitrogen to grow. Animals can get it from eating plants. But plants must get it from the soil. Fixed nitrogen (in the forms of nitrate ions - NO3-) is the only type of nitrogen that can be found in the soil.Note that nitrogen (as a gas - N2) makes up most of the air. Most plants can not use it because the molecules are triple-bonded.
Steam is gaseous water. Hot air is just air (mostly nitrogen and oxygen and a mix of other things, usually including some water vapour) that is heated. Hot air will likely contain some steam.
Nitrogen doesn't contain air, but the air contains Nitrogen.