Is air lighter or heavier than carbon monoxide?

Answer 1

Any real-world consideration must take in to account the moisture in the air. Assuming 50% relative humidity at about 70 degrees F, the molecular weight of air would be about 28.01 which is almost exactly the same as the molecular weight of CO. In trying to figure out whether CO will rise to the ceiling or settle to the floor, the relative temperatures of the CO / Air would have to be considered. Information from the Canada Mortgage and Housing Corporation indicates: "Most manufacturers specify where you should locate their CO detector. In general, the best place to put the detector is where you will hear it while sleeping. CO is roughly the same weight as air and distributes evenly throughout a room, so a detector can be placed at any height in any location, as long as its alarm can be heard. Additional units could be installed in several other locations around the home, such as a child's bedroom; check the list below before installing. To avoid both damage to the unit and to reduce false alarms, do not install CO detectors: * in unheated basements, attics or garages * in areas of high humidity * where they will be exposed to chemical solvents or cleaners, including hair spray, deodorant sprays, etc. * near vents, flues or chimneys * within 2 metres (6 ft.) of heating and cooking appliances * near forced-or unforced-air ventilation openings * within 2 metres (6 ft.) of corners or areas where natural air circulation is low * where they can be damaged, such as an outlet in a high traffic area * where directly exposed to the weather."

Answer 2

No, as it contains oxygen and carbon. Carbon monoxide contains 1 oxygen (mono) and 1 carbon.

Answer 3

Lighter