A helium-filled balloon of the type used in long-distance flying contains 490,000 ft^3 (1.4 x 10^7 L) of helium. Suppose you fill the balloon with helium on the ground, where the pressure is 743 mm Hg and the temperature is 20.1 °C. When the balloon ascends to a height of 2 miles, where the pressure is only 600. mm Hg and the temperature is –33 °C, what volume is occupied by the helium gas? Assume the pressure inside the balloon matches the external pressure.

Chemistry & Chemical Reactivity
10th Edition
ISBN:9781337399074
Author:John C. Kotz, Paul M. Treichel, John Townsend, David Treichel
Publisher:John C. Kotz, Paul M. Treichel, John Townsend, David Treichel
Chapter10: Gases And Their Properties
Section: Chapter Questions
Problem 40PS: A collapsed balloon is filled with He to a volume of 12.5 L at a pressure of 1.00 atm. Oxygen, O2,...
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A helium-filled balloon of the type used in long-distance flying contains 490,000 ft^3 (1.4 x 10^7 L) of helium. Suppose you fill the balloon with helium on the ground, where the pressure is 743 mm Hg and the temperature is 20.1 °C. When the balloon ascends to a height of 2 miles, where the pressure is only 600. mm Hg and the temperature is –33 °C, what volume is occupied by the helium gas? Assume the pressure inside the balloon matches the external pressure.

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