A helium-filled balloon of the type used in long-distance

Last updated: 7/31/2022

A helium-filled balloon of the type used in long-distance flying contains 420,000 ft (1.2 x 107 L) of helium. Suppose you fill the balloon with helium on the ground, where the pressure is 739 mm Hg and the temperature is 17.8 °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.