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By radiating energy, the heat excites air molecules to expand, within the confined space of the balloon's lower density and over all mass, causing the whole thing including the container to float.

Hot air is lighter (less dense) than cool air, so it rises.

Because the cool air is denser it occupies less volume. The cooler, denser air will slide down beneath the warm air mass, thus providing lift to the balloon.

If you heat a gas such as air, it will expand - more volume for the same mass. This means it will be less dense - less kilograms per cubic meter for example. Being less dense than the surrounding air, it will tend to float - but of course, the upwards force must be enough to compensate the balloon's weight.

Because hot air rises. Period. Nothing fancy. The air in the balloon would be hotter than the air around it, so it will rise.

Hot air is less dense than colder air, therefore the hot air balloon will float on the cooler air surrounding it.

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11y ago
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13y ago

The ability of the gas to make an air balloon float in air is determined by how less dense the gas is compared to air. When this gas is heated, it expands. When volume increases due to the expansion, the density of the gas decreases. This makes the balloon rise up farther.

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12y ago

As the particles inside the balloon are heated, particles spread farther apart and begin to move faster, and therefore the collisions become more violent. And once there is a high amount of kinetic energy, movement is created and the balloon rises. Now, if the air inside a balloon was cooled, then it would somewhat deflate and it would not float as well, because the particles inside it become slower and closer together, and it would descend to the ground.

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12y ago

Heating the air molecules inside the balloon makes them move faster and spread out, so that the hot air becomes less dense than the surrounding air, and the balloon is then able to float, or rise.

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11y ago

Heating the balloon cause the air inside to gain heat and as hot air rises,the balloon rise.

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14y ago

Hot air, or any gas, spreads the moleclues out, which makes it lighter, thus it will rise.

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Q: Why would heating a gas in the air balloon make the balloon rise?
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Related questions

What would heating the gas in an air balloon make the balloon rise?

Simple...hot air rises..


The air in hot air balloon is heated to make the balloon rise?

The volume of air increases on its heating hence the balloon rises on heating


Why would heating a hot air balloon make the balloon rise?

Hot air expands. When it expands, it becomes less dense and rises.


Why would heating the gas in a hot air balloon make the balloon rise?

When the gas (air) in a hot air balloon is heated it becomes less dense. This makes the balloon more buoyant so it rises.Because heating the air inside the balloon makes it less dense than the air surrounding the outside of the balloon, so it will rise.


Why would heating the gas in a air balloon make the balloon rise?

Hot air rises more quickly than cold air, so when you heat the air inside the balloon, it cant escape, so it pushes the balloon up.


Why would heating the gas inan air balloon make the balloon rise?

because as you heat the gas, you cause the gas to expand on the container (whish is a balloon), this lowers the density, and a less dense fluid submersed in a denser fluid will rise, like an air bubble rises from underwater


Why would heating the gas in balloon make the balloon rise?

if you mean how the hot air in a hot air balloon makes it rise, its because hot air is less dense than cold air. when cold and hot air meet the cold air sinks thus making hot air left to rise.so when you put hot air in a balloon the air would rise. hope this helps.


Why would heating the gas in air balloon make balloon rise?

if you mean how the hot air in a hot air balloon makes it rise, its because hot air is less dense than cold air. when cold and hot air meet the cold air sinks thus making hot air left to rise.so when you put hot air in a balloon the air would rise. hope this helps.


How does heat make a hot air balloon go up?

Hot air rises. By heating the cool air in the balloon using a propane heater, heats the air and makes the balloon rise


Would a hot air balloon pilot heat or cool the air in the balloon to make it rise?

He would heat it.


How do you make air lighter so that it will cause a balloon to rise?

To make air lighter you would increase the heat inside the balloon, making it less dense, causing it to rise.


Will a balloon rise if the air inside is hot?

The heating of the air through the use of a burner is what makes balloons rise.