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How much hot air does it take to raise a hot air balloon?
No set answer to that, it depends on how much the balloon has to lift.
What does density have to do with hot air balloons?
The burners on a hot air balloon create hot air, which rises into the balloon and displaces the cooler air from the balloon. Then the hot air, being less dense, will lift the balloon as the cooler surrounding air sinks below it. Once the air cools, the balloon will lose its lift and settle back to the ground. The hot air is only slightly less dense, so it requires a lot of volume to lift the comparatively smaller mass of the balloon and gondola.
Does heat make things fly?
no it weighs things down . Hot air tends to lift things, as in a hot air balloon.
What gases lift a balloon into the air?
Anything less dense than air (hydrogen, helium, hot air).
Is helium used in hot air balloons?
No, it is not. "Regular" air is used, and it is heated. Hot air is less dense than cooler air, and it will rise. If hot air is trapped in an envelope, it will give lift to the envelope and an attached payload.
How much hot air does it take to raise a hot air balloon?
No set answer to that, it depends on how much the balloon has to lift.
Why does a hot air balloon only go up when it is hot air?
Hot air is less dense then the surrounding air, meaning it's lighter then regular air, allowing it to naturally lift. If something catches that lifting air, and the air is so light that it can lift the required weight up, then it will lift. That's why a hot air balloon requires hot air to lift.
How do hot air balloons produce lift?
Hot Air
Does a hot air balloon need CO2 to lift?
no, hot air air is used
Why is a hot air balloon able to lift itself?
because hot air rises
Why does a hot air balloon fly?
A hot air balloon flies because it is filled with hot air. Hot air rises and causes the balloon to lift from the ground.
Do planes get more lift in hot weather?
No, when the weather is hot the air is less dense so they will get less lift.
Why does a hot balloon fly?
A hot air balloon flies because it is filled with hot air. Hot air rises and causes the balloon to lift from the ground.
Can a hot air balloon lift a car?
yes
Why is the size of balloon in the hot air balloon important?
Big enough to allow the hot air to create lift.
What does density have to do with hot air balloons?
The burners on a hot air balloon create hot air, which rises into the balloon and displaces the cooler air from the balloon. Then the hot air, being less dense, will lift the balloon as the cooler surrounding air sinks below it. Once the air cools, the balloon will lose its lift and settle back to the ground. The hot air is only slightly less dense, so it requires a lot of volume to lift the comparatively smaller mass of the balloon and gondola.
How much more lift does heliuim have than hot air?
"Lift" is pretty much defined as the difference in weight of equal volumes of the lifting gas (helium or hot air) and the ambient air. As a comparison, a typical density of air is about 0.00018 g/cm3. At the same temperature and pressure, air would be about 0.00128 g/cm3. The difference is 0.00128 - 0.00018 = 0.0011 g/cm3. So 1 cm3 of helium can lift about 0.0011 g. Scaling that up, 1 m3 of helium could lift about 1.1 kg. To achieve equal buoyancy, the air would have to be heated to about 1850 °C. Normal operating temperatures for hot air balloons are closer to 120 °C. At this temperature, the air density is about 0.00090 g/cm3, so the lift would be about 0.00128-0.0090 = 0.00038 g/cm3 so by comparison, helium would be 0.0011/0.00038 = 2.9 times the lift of hot air.
