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
Hot air rises because it is less dense than cold air. As hot air heats up, its molecules move more quickly and spread out, making it lighter and causing it to rise. Conversely, cold air is denser and sinks because its molecules move slower and are more closely packed together.
Cold air typically has less force than hot air because cold air is denser and therefore heavier, making it more difficult to move. Hot air is lighter and tends to rise, creating air currents and potentially more forceful movements.
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.)
Hot air. Because it always rises above cold
No, warm air is less dense than cold air because the molecules in warm air have more energy and are spread out more, resulting in lower density.
Hot air rises, so is lighter than cold air.
Hot air, hydrogen or helium are lighter than cold air.
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.
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.
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).
No, hot air is actually lighter than cold air. This is because the molecules in hot air move faster and spread out, resulting in lower density compared to cold air where the molecules are closer together and more tightly packed.
In very simple terms, hot air is lighter than cold air, so it rises.
Because - hot air is lighter than cold air - and thus it rises.
Yes, there is a difference in weight between hot air and cold air. Hot air is lighter than cold air because the molecules in hot air are more energetic and spread out, decreasing the overall density of the air. This difference in weight is a factor in phenomena such as convection currents.
A hot air balloon is lighter than air because the air inside the balloon is heated, which causes it to become less dense than the surrounding air. This buoyant force allows the balloon to float in the air.
hot air is lighter than cold air so, it gose up
Hot air, hydrogen or helium are lighter than cold air.