Web Results

www.reference.com/science/list-gases-lighter-air-2ef84f0075c64098

Gases that are lighter than air include water vapor, methane, hot air, hydrogen, neon, nitrogen, ammonia and helium. These gases have a lower density than air, which causes them to rise and float in the atmosphere.

www.quora.com/What-types-of-gases-are-heavier-than-air

You can’t weight air. But you can find its density. Air density or mass per unit volume of Earth's atmosphere is, 1.225 [math]kgm^{-3}[/math]This is the density at the sea level at 15°C. Some gases are lighter than air like, Ammonia - [math]0.717k...

en.wikipedia.org/wiki/Lighter_than_air

Only certain lighter than air gases are suitable as lifting gases. Dry air has a density of about 1.29 g/L (gram per liter) at standard conditions for temperature and pressure (STP) and an average molecular mass of 28.97 g/mol, and so lighter than air gases have a density lower than this.

www.answers.com/Q/What_Gases_are_lighter_than_air

Helium rises because it is less dense than the air. If it is less dense then it will rise above the air until it meets a gas lighter than it. There are other gases lighter than air.

ianbgas.co.uk/technotes/Gases-heavier-or-lighter-than-air.html

This is considerably less than the figure for air – methane is lighter than air. We can find its density relative to air by dividing its weight figure by that of air: 16/28.8 = 0.56, a number familiar to many gas engineers.

www.reference.com/science/gas-lighter-air-6b391099a5ae4c1d

Hydrogen, helium, ammonia, methane, neon, coal gas and pure nitrogen are all lighter than air. A pocket of air can be made lighter than the surrounding air by heating it. According to the Underwater Robotics Research Group, gases that are lighter than air have densities that are less than 1.2 kilograms per cubic meter or 1.2 grams per liter.

mypages.iit.edu/~smile/ph9521.html

Gases Lighter and Heavier than Air Bonnie Anderson Libby School Annex 5338 S. Loomis Chicago IL 60609 (312) 535-9350 Objective: This lesson was designed for students in grades 2-4. The students will be able to understand and demonstrate that there are gases that are lighter (less dense) and heavier (more dense) than air. Materials Needed:

www.britannica.com/technology/lighter-than-air-aircraft

In airplane: Lighter-than-air. Aircraft such as balloons, nonrigid airships (blimps), and dirigibles are designed to contain within their structure a sufficient volume that, when filled with a gas lighter than air (heated air, hydrogen, or helium), displaces the surrounding ambient air and floats, just as a cork…

www.answers.com/Q/Name_all_gases_heavier_than_air

argon is a component of "air" and as such air cannot be lighter than air, only more or less dense, however, judging from atomic masses, yes argon is heavier than nitrogen, oxygen, helium, and ...

www.firehouse.com/rescue/article/10495996/evolution-of-an-hazmat-acronym

Ethane is a heavier-than-air gas! In reality, the list of lighter than air materials was found to be incomplete so the HAHA MICE acronym has become obsolete when it comes to memorizing the gases ...