Question

Atmospheric Pressure

A weather balloon is filled with 170.0 L of He and launched from sea level (T=20 degrees celsius, P=755 torr). The balloon is designed to continue its ascent to analtitude of 30 km, where it bursts, releasing a package of meteorological instruments that parachute back to Earth. If the atmospheric pressure at 30 km is 28.0 torrand the temperature is -4.0 x 10^1 degrees celsius, what is the volume of the balloon when it bursts?

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