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The Curious Bag
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<h4 class="dechead">On One Hand: No Ideal Gas Exists
In order for a gas to act according to the ideal gas laws, the molecules that make up the gas cannot have any effect on each other, such as gravitational pull or losing kinetic energy as they bump into each other, according to Science Clarified.
On the Other: Hydrogen Acts Much Like An Ideal Gas
While no ideal gas exists, hydrogen comes as close as possible to attaining the status of an ideal gas, according to Williams College Department of Chemistry. Hydrogen has an extremely low volume, just 0.0265 moles per liter of air and it exerts a partial pressure of 0.245 atmospheres per moles squared per liter of air squared. These values are very close to that of an ideal gas, which should have a value of zero for both pressure exerted and volume.
Bottom Line
While definitely not an ideal gas, you can consider this the most ideal of the real gases for demonstration purposes. It is usually easier for students to comprehend how gases operate in theory before adding more complicated concepts like the van der Waals force which takes into account gravitational pull.
Source:
Science Clarified: Properties of Gases
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