No, it has a higher molecular mass (46 g/mol) than air (28.7 g/mol)
Water vapor is a gas so it is in the air. Nitrogen and nitrogen are in the air too, but there is more nitrogen than anything in the air. I believe it rises because it is lighter, like a balloon filled with helium.
Air is heavier than water vapor. Under certain condition (same pressure, temperature ...), the molecular mass of water vapor is 18 and the average molecule mass is approximately 29 (because in the air there are many gases with different mass) Therefore: d(H2O/air) = M(H2O)/M(air) = 18/29 < 1 That means Water vapor is lighter than air, or vice versa.
The vapor density of carbon monoxide is 14.0 g/L at standard temperature and pressure (STP). This means that carbon monoxide is slightly lighter than air, which has a vapor density of 28.97 g/L at STP.
If a hydrate's vapor pressure is higher than the water vapor in the air, water molecules will evaporate from the hydrate into the air until equilibrium is reached. This process will continue until the vapor pressures are equalized.
No, the more water vapor the air contains, the lighter it is. When water vapor enters the atmosphere, it pushes out an equal volume of dry air. A cubic meter of dry air is 99 percent nitrogen and oxygen. A cubic meter of humid air with 2 percent water vapor is only 97 percent nitrogen and oxygen. Water vapor is lighter than the nitrogen and oxygen it pushed out. Therefore, humid air weighs less than dry air and exerts less pressure.
Water vapor is a gas so it is in the air. Nitrogen and nitrogen are in the air too, but there is more nitrogen than anything in the air. I believe it rises because it is lighter, like a balloon filled with helium.
Yes, solvent naphtha vapor is lighter than air. This means that it will tend to rise and disperse upwards in the atmosphere. It is important to handle solvent naphtha with care to prevent accidental exposure or inhalation.
what is the substance formad when burning both hydrogen and ethanol in the air
Yes, methane is lighter than air. Methane gas has a molar mass of approximately 16 g/mol, which is lighter than the average molar mass of air (about 29 g/mol). This means that methane will tend to rise and disperse in the atmosphere rather than sink.
When boiling ethanol, the gas inside the bubbles is mainly ethanol vapor along with some air. Ethanol vapor is formed as the liquid ethanol heats up and turns into a gas, creating bubbles that rise to the surface.
Warm, moist, humid, air associated with a low pressure system is actually lighter than dry air - owing to the fact that hydrogen molecules in water vapor (H20) are lighter than Oxygen or Nitrogen molecules. This moist air rises - causing air pressure to be relatively low compared to surrounding air.
Moist air is heavier than dry air, because of the water.
Gasoline is a mixtures so the is not particular molecules that can be identified as gasoline. But most of the components are denser than air even in the vapor phase.
Water isn't "heavy." Liquid water is more dense than air, yes, but water vapor is (significantly) lighter than air. Water is a liquid at temperatures far higher than what might be expected based on its molecular weight because of hydrogen bonding.
Yes, ozone is lighter than air.
Moist air means that there is more water vapor in a given amount of air than there is when the air is dry. Water vapor is less dense than dry air, so if there's less dry air and more water vapor, the air weighs less (if you don't change its altitude).
HYDROGN IS 14 TIMES LIGHTER THAN AIR.