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Oxygen has, because the people in the room, as they breathe, are constantly
replacing it with carbon dioxide. That's why it's so important to have adequate
ventilation and air replacement in crowded confined spaces.
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∙ 10y ago
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When does a cubic meter of air have less mass?
When it is at a lower pressure or a higher temperature.
Why are ventilators provide near the ceiling room?
ventilators are provided in the rooms just below the roofs because when the air inside the room gets hot this warm air rises up... and flow through these ventilators and thus cool air remains at bottom......so this is how ventilators make us relieve in hot summers ,i hope i made u satisfy by my answer :) answered by:Pari kohli ;)
What happens to an airfoil that is curved on its bottom surface but flat on its top surface when it is forced through the air?
The air that goes around the bottom has farther to go than the air round the top, if after passing the air is to return ito its equilibrium. So the air over the bottom is "stretched" (more volume for the same amount). So its pressure is lower than the air on top. So, turning it upside down, the extra pressure below can be used to lift aeroplanes. That's a rather crude description, admittedly, of what is happening.
How does an infinite geometric series apply to being pushed on a swing?
Probably the movement on a swing can be approximated by assuming that the magnitude of each swing will be a certain percentage of the previous swing (because of lost energy).
How many air molecules are in a 13 x 12 x 10ft room Assume atmospheric pressure of 1 00 ATM a room temperature?
To solve this problem, several different steps must be taken. Convert Volume = 13*12*10 = 1560ft^3 * 28.2 = 43992L ~28.2 Litres per cubic ft Ideal Gas Equation: PV=nRT Rearrange: n=PV/RT Temperature:273+20=293K n=[(1*43992)/(0.0821*293) = 1828.78 1 mol Air Molecules = 6.022*10^23 Air Molecules 1828.78*(6.022*10^23) = 1.10 * 10^27
What is the percentage of room air?
Somthing
What is the maximum oxygen percentage at air?
Room air is about 21% oxygen.
If the air in a room has a lower temperature than the air coming out of a floor vent from a forced air heater how would heat flow?
from the air in the vent to the air in the room
Why are room heaters placed at a lower level?
Room heater are placed on a lower level because the air coming from the room heater is hot and hot air is light so it will go up and resulting in keeping us warm.
How many BTU are required to lower the temperature of the air in a room one degree Fahrenheit?
That would depend on the size of the room and the humidity.
Why do the windows sweat on the inside of a non heated room?
Because the surface temperature of the window is below the dewpoint temperature of the air in the room, so the water vapor in the room air condenses on the cold window. If you can, lower the room humidity or raise the room temp to warm the window to stop it.
Why should you crawl lose to the floor in a smoke filled room?
Because the smoke is hot and will rise towards the ceiling. The lower you stay in a smoky room, the fresher the air is !
Why are air conditioners usually placed at a higher rather than at a lower level?
In areas with air of varying temperatures, the cooler air will sink into the less dense warmer air. Adding cooler air at a higher point in the room will improve mixing as it settles into the room, rather than remaining near the floor. For the same reason, heating (without a fan) is more effective when done at a lower level, so that the warm air rises into the occupied area.
Will a cloth dry faster in a normal temperature room or a air conditional room at night?
Under most conditions, a cloth will dry faster at normal (warmer) temperature sooner than in the relatively cooler air-conditioned room. However, if the air-conditioned room has been cooled for long enough, the excess moisture will have been removed and the humidity will be lower.
Which vents should be open upper or lower vent on fireplace?
I would think both. Cold air from the room goes in the bottom and warmer air comes out the top.
Is air more dense than oil?
No. density is based on molecular mass. Air is considered a gas. Gases have lower densities than liquids at 'room temperature'.
What percentage of oxygen is required in a poultry incubator?
If you can breathe in the room the incubator is located in then you will not need to supplement the air they need. Incubators are not airtight.
