A Helium-Filled Weather Balloon Has a 0

question 14

Multiple Choice

A helium-filled weather balloon has a 0.90-m radius at liftoff where air pressure is 1.0 atm and the temperature is 298 K.When airborne,the temperature is 210 K,and its radius expands to 3.5 m.What is the pressure at the airborne location?

• A) 0.50 atm
• B) 0.012 atm
• C) 0.019 atm
• D) 0.38 atm

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