What gas has the greatest density at room temperature and pressure?

Question

It is well known that carbon dioxide is denser than air.
What are some other very dense heavy gases? What is the densest known gas?

Answer 1

ur gas

Answer 2

The element Radon is the heaviest known gas with an atomic number of 86 and an atomic mass of 222. However, Radon is a by-product of the element radium when this very heavy metal decay. Radium is also a by-product of the element Uranium when this metal starts to decay. Radon; which is also radioactive, will eventually delay into lead, a non-radioactive metal. This decay, atomic break down, is the source of gamma radiation.

Answer 3

A very dense gas is SF6 (6.16 g/L). On television they had a container of SF6 and were actually able to float an aluminum foil boat on the surface of the SF6. Since SF6 is colorless it looked like it was floating in mid air. Another gas that is dense is argon (1.78 g/L). It is sometimes used in chemistry to exclude air and moisture from reactions. Radon is the densest gas at 9.73 g/L

Answer 4

ReF6 boils at 34 C. It has molecular weight 300.197 that beats the pants off radon at MW = 222.

SF6 is the heaviest common gas at MW = 146.06.
Perfluoropentane boils at 28 C with MW = 288.036.

Answer 5

For perfect gases, you may purely use the perfect gas regulation. For drinks, that is tougher. the brief answer is: there's no equation. The lengthy answer is which you would be able to arise with parametric equations and greater healthful them to empirical documents. in spite of the undeniable fact that, there'll continuously be exceptions. an extremely demanding case is water: in case you cool it down, it increases in density until you hit 4C, then that is going to *decrease* in density until you hit 0C, then that is going to grow to be ice. For solids, that is especially plenty hopeless until you circulate into engineering, then thermal enlargement would be defined with tensor arithmetic. ;)

Answer 6

Radon

Answer 7

i would go with radon: density = 9.73 g/L at 0°C
SF6 density = 6.16 g/L at 0°C

Any compound having higher molecular weight than radon and gaseous state at room temp and pressure will have higher density, but i doubt that there is one.