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Fire is not a material thing like air, water, soil, etc.
It is chemical reactions happening so fast and so violently that one can see the "upheaval", to put it that way.
Fire as such can thus not have mass or denseness or whatever -- only the material things that are transformed in the process have mass and denseness.
One can therefore not answer the question. It is like comparing a quagga with a quark.
-- Mieliestronk
Wiki User
∙ 14y ago
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Is warm air dense?
No, warm air is lighter than cold air because hot air rises and cold air stays in the same place.
Why does got air rise and cold air sink?
Hot air is lighter while cold air is heavier. This results in warm or hot air rising and cool or cold air falls.
Which is heavier hot air or cold?
Hot air. Because it always rises above cold
If cold air is heavier than warm air then why is it colder in the mountains?
You have forgotten one vital fact, cold air is heavier than hot air------At the same atmospheric pressure!!. That means that the cold air on Mt Everest is lighter than than the warm air 29000 ft below in the Ganges Delta.
Why is hot air heavier than cold air?
Heat itself is a form of energy. This gives the air molecules more kinetic energy. Thus, with more kinetic energy, the air molecules move a lot more. Adversely, in cold air, there is less energy, thus the air molecules move less slowly. This is what gives hot air more volume than cold air. (Yeah I know I used more commas than I should've.)
Is hot air liter or heavier than cold air?
Hot air rises, so is lighter than cold air.
When balloons are filled with this they are lighter than air.?
Hot air, hydrogen or helium are lighter than cold air.
When balloons are filled with this they are lighter than air?
Hot air, hydrogen or helium are lighter than cold air.
What is in a hot air balloon to make it fly?
Hot air! Hot air is lighter than cold air.
What keeps hot air balloons aloft?
the hot air inside the balloon is what's keeping the balloon aloft. the explanation is hot gases or air is lighter than cold air so hot air will rise since it is lighter than the cold air.
Why does it have to be hot air and not cold inside the envelope of a hot air balloon?
hot air rises; it is lighter than cool air It does not have to be Hot Air inside the balloon, unless you want that Balloon to rise up.Hot Air is less dense than Cold Air and hence the former is lighter.
Why is warm air lighter than cold air?
Warm air is lighter than cold air because cold air is denser, by dense I mean the particles in cold air are more packed together than it is in warm air. Therefore cold air is heavier which is why warm/hot air always floats above cold air (same thing with hot/warm and cold water). That is why warm/hot air is lighter than cold air.That's the reason why a hot air balloon only goes up when there's something producing hot air (like fire for example), and the only reason it goes back down is if you put out the fire. Remember this only happens because Hot water/air is less dense than cold air which makes it lighter.
How does heat affect flight?
Hot air is lighter than cold air. If you fill a balloon with hot air, the air inside will be lighter than the air outside and therefore the balloon will rise (until the air inside gets cold again).
Is a hot air balloon lighter or heaver then air?
The actual balloon isn't lighter than air, the only reason hot air balloons rise is because they are filled with hot air, which is lighter and less dense than cold air, causing it to rise. :)
How does hot air balloon travel work?
In very simple terms, hot air is lighter than cold air, so it rises.
Why is the top of an oven hotter than the bottom?
Because - hot air is lighter than cold air - and thus it rises.
What makes hot air balloon rise into the air?
What are you, a retard? Even my 5 year old sister knew the answer to this. Hot air is lighter than cold air, thus the balloon with hot air rises higher than the cold air around it.
