KnowraGasLinked fromLinked fromThe 9 pages that link to Gas, each with the reason it gives.All 9Broader topic 2Narrower topic 4Compared with 3Carbon dioxideNarrower topic: CO₂ is a gas under ordinary conditions on Earth's surface.Hydrogen chlorideNarrower topic: Pure hydrogen chloride is gaseous under ordinary room conditions.Standard temperature and pressureNarrower topic: STP is principally used to specify comparable conditions for gas properties.Jan Baptist van HelmontNarrower topic: He helped make gas a distinct category of substance rather than merely a form of air.