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  3. a hot air balloon has a total mass of 750 kg (not

A hot air balloon has a total mass of 750 kg (not including the air in...

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Physics

A hot air balloon has a total mass of 750 kg (not including theair in the balloon) and holds a volume of 2.8 x 10^6 L of air.Assume the density of the air outside the balloon to be 1.2 kg/m^3at a temperature of 20 degrees C and the air pressure is 101.3 kPainside and outside the balloon. What is the minimum temperature forthe air in the balloon to allow for the balloon to float? You canassume the air in the balloon to be an ideal gas and you mustconsider the mass of the air in the balloon as part of the totalmass. Also, assume the molar mass of air to be 29 g/mol. (Theanswer is 379 K. Please show work.)

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