Hot air balloons contain a fixed volume of gas

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Hot air balloons contain a fixed volume of gas. When the gas is heated, it expands, and pushes some gas out at the lower open end. As a result, the mass of the gas in the balloon is reduced. Why would the air in a balloon have to be hotter to lift the same number of people above Colorado, Vail, which has an altitude of 2400 m, than above the tidewater flats of Virginia, at an altitude of 6 m?

Reference no: EM13674159

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