If the starting volume of a hot air balloon is 55,500 m3and the initial
temperature is 21 °C, what is the temperature inside the balloon is the final volume is 74,000 m3.
Explain why the volume of the balloon increases when temperature is increased in terms of average
kinetic energy, collisions and volume. Explain how the balloon is actually able to lift off the ground
in terms of density. (Useful info: density of hot air is 0.946 kg/m3 and the density of normal (ambient
air) is 1.2 kg/m3.)
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Asolid that forms and separates from a liquid mixture is called
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Ascientist measures the speed of sound in a monatomic gas to be 449 m/s at 20∘c. what is the molar mass of this gas?
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Which would freeze at a higher temperature: the great salt lake or lake tahoe? a. lake tahoe would freeze at a higher temperature. b. the great salt lake would freeze at a higher temperature. c. both lakes would freeze at the same temperature.
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If the starting volume of a hot air balloon is 55,500 m3and the initial
temperature is 21 °C, what...
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