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A weather balloon is filled with 155.0 L of He and launched from sea level (T = 20.0°C, P = 755 torr).


A weather balloon is filled with 155.0 L of He and launched from sea level (T = 20.0°C, P = 755 torr). The balloon is designed to continue its ascent an altitude of 30.0 km where it bursts, releasing a package of meteorological instruments that parachute back to Earth.

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