If the air temperature outside of the hot air balloon and the air inside the hot air balloon are the same, will that balloon still rise or just remain at the same point. This is not to say both temperatures are cold. Both temps should be hot. Hot enough for the air to rise, but if the outside and inside are equal in the heat, will that big a/s/s balloon move or just stay in the same spot. I think this would be difficult to try because a hot air balloon is very large and to heat all the surronding air around it might be next to impossible. This only applies to hot air. Not other types of gasses lighter than air, were temp wont affect lift dramatically. The reasonig for this question is for exploration on other planets with hot air temps, would this type of situation work using only air? And would it be possible to control it?
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In case of exploration on other planets, firstly other planets have very low density of air in the atmosphere (most of them do not have any air) and secondly even then is one wants to use this one has to heat up the balloon to a temperature for which the density decreass lower than the surrounding. Hope this answers your question.
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When the temperatures of both inside and outside are same, then we cannot say that the air inside the balloon is hot.
The hot air balloon works because of the temperature difference.
You have to think of other ways only.
The helium balloon goes up, even though, the temperature inside and out side is same.
In hot air balloon air is made to have less density by heating.
In helium balloon helium by its very nature is less dense than air.
no, the resons regarding the pressure given earlier is correct
no
hot air is lighter than surrounding air because its density is reduced by heat (and therefore pressure is increased). it depends on pressure and density as well as temperature, so u have to specify more
The formula is PV=nRT
the baloon may rise or not based on other criteria, not just temperature 🙂
No.
If the surrounding air has the same temperature with the air inside of the hot air balloon, then the hot air balloon can no longer be named a hot air balloon, therefore we really don’t have a question…
no the balloon will not rise actually hot air is filed in balloon because as air is heated it becomes less denser and so the balloon rises but when both outside& inside temps of balloon are same either cold or hot how can it rise.you can perform an experiment
1.take an empty glass bottle and keep it in a vessel of water.
2.now fix a balloon 2 its mouth,
3.start boiling the water in vessel as water heats the air inthe bottle gets heated and the baloon rises
4.see this happens only because the inner temp is greater than outer
MY CONLUSION IS FOR BALLOON TO RISE IT SHOULD B AT IGH TEMP THAN SURROUNDING
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The hot air outside the balloon would also be rising, carrying the (relatively) stationary balloon with it!
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No it would not rise, if the outside temp and the inside temp were the same. If the air outside the balloon on some planet were hot, we could probably just suck that in and supply a heat source, heat it more, but that’s a guess. And no I don’t believe you can control this, your talking about controlling the temp outside, with no container, we could not heat the planet air temp, again a guess. At least as of yet we couldn’t control this.
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No, of course not.
And it could work in liquid but probably not in solid.