At (20 °C, 68 °F) which is a typical air condition, a hot air balloon warmed to (99 °C, 210 °F) requires about 3.91 m³ of envelope volume to lift 1 kilogram (62.5 ft³/lb). The exact measure of lift gave depends upon the inward temperature as well as outer temperature.
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Hot air balloons
It is a lighter-than aircraft comprising of a pack, called an envelope, which contains warmed air. Suspended underneath is a basket, which carries a source of heat and passengers. The warmed air inside the envelope makes it light since it has a lower thickness than the colder air outside the envelope.
Flight of hot air balloon
Hot air provides lift. Warmed air atoms "spread out" or grow and bounce around, and space turns out to be less thick than the encompassing space. Expanding the air temperature inside the envelope makes it less thick than the air, in this manner making it "lighter than air". The measure of lift relies upon the contrast between the temperature inside and outside of the envelope, and the weight that is being lifted. Cooler seasons consider less propane utilization and give lift at lower inner temperatures. More smoking seasons utilize more propane and can expand wear on the material from higher temperatures expected to accomplish the lift. Its envelope can withstand temperatures up to roughly 250°F for a significant time period.
Factors affecting the flight of hot air balloon
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Subject: Chemistry
Level: College
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