Of the simple elemental gases, Astatine may have the highest density. An awkward material to work with, but it is likely to evaporate from its self heating due to its radioactivity. Perhaps less is known of this element than any other.
Otherwise, the usual halide group (Cl, Br, F, etc.) have great densities, and perhaps evaporated iodine would be high on the list.
For non-elemental gases, there will be some unusual pentachlorides or pentafluorides, usually used as liquids in mineral separation. regret not being able to be more specific.
Gold.
glod
There is indeed a relationship between gravity and atmospheric pressure. Gravity attracts matter with mass, in this case gas. The atmosphere being a layer of gas, the stronger the gravity, the higher it's pressure. I if you seal gas in a tank, and increase its mass (by adding more gas) the pressure will increase. Now imagine that the tank is the earth, and gravity is exerting a down force on the gas... It's like water. Although it can't be compressed, water exerts pressure because of gravity; the deeper you go the higher the pressure. Now imagine the atmosphere pressure on Jupiter....
Specific gravity is often defined relative to water, in which case the specific gravity of air is 0.001225. Specific gravity can also be defined relative to the density of air, in which case the specific gravity of air is exactly 1. Specific gravity is often defined relative to water, in which case the specific gravity of air is 0.001225. Specific gravity can also be defined relative to the density of air, in which case the specific gravity of air is exactly 1.
specific gravity of acetone is 0.79
Oil has the highest specific gravity. Water has the second.
specific gravity for common natural gas : 0.55 to 0.7 Specific gravity is unitless and is give the density of the gas divided by the density of air at 20C and 1bar.
gold
Gold.
specific gravity of any substance can be find out only when it will be in liquid or gas medium.Because specific gravity of any liquid equals to ratio of density of that liquid to the density of water and specific gravity of any gas is the ratio of density of that gas to the density of air. cement is solid material(powder form) and so can not be graded on the basis of specific gravity in all conditions. (ravi nitesh,KPTL)
Is this a school question that you simply don't know the answer to?
glod
Specific gravity, (similar to density) has no meaning for a gas, since the density varies with pressure and temperature.
THE MINERAL WITH THE HIGHEST SPECIFIC GRAVITY IS CALLED OSMIUM (Os) followed closely by Iridium. Most people think that Gold is the leading one. Thank you, Audax Kiwango, Mineral Engineer.
0.55 to 0.7
Specific gravity is the ratio of a substance's density to the density of a reference substance, usually water for liquids, or air for gas. For example, since the density of iron is about 8 times as much as that of water, that means that its specific gravity is 8.
Diesel fuel has a density of approx. 0,83 g/cm3.