Question: A spherical 24-in.-diameter balloon contains helium at 72°F. What is the mass of helium in the balloon assuming the pressure is approximately 14.7 psia? Approximate

A spherical 24-in.-diameter balloon contains helium at 72°F. What is the mass of helium in the balloon assuming the pressure is approximately 14.7 psia? Approximate the diameter of the balloon at an elevation of 5000 ft, as shown in Fig. 2.37. (Assume the pressure difference across the balloon surface is negligible.)
Figure 2.37

5000 ft

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