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11 Nov 2019

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Jean Keeling
Jean KeelingLv2
16 Oct 2019

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Related questions

At constant pressure, density of gas is inversely proportional to its temperature. This is how hot air balloon is floating in air: burning fuel makes inside air temperature higher and density lower; low density air balloon float on high density regular air. What is the density of air in g/L at 68 degree C if the atmospheric pressure is 1.0 atm? The average molar mass of air is about 29 g/mol. Keep two decimal places for your answer.

Helium-filled balloons rise in the air because the density of helium is less than the density of air.

(a) If air has an average molar mass of 29.0 g/mol, what is the density of air at 25°C and 770 mmHg?

(b) What is the density of helium at the same temperature and pressure?

(c) Would a balloon filled with carbon dioxide at the same temperature and pressure rise?

When fully inflated, a hot-air balloon has a volume of 1.6×105L at an average temperature of 383 K and 0.981 atm .

Assuming that air has an average molar mass of 29 g/mol, what is the density of the air in the hot-air balloon?

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