A weather balloon is designed to expand to a maximum radius of 21 m at its working altitude, where the air pressure is 0.030 atm and the temperature is 200 K. If the balloon is filled at atmospheric pressure and 304 K, what is its radius at liftoff?
A weather balloon is designed to expand to a maximum radius of 21 m at its working altitude, where the air pressure is 0.030 atm and the temperature is 200 K. If the balloon is filled at atmospheric pressure and 304 K, what is its radius at liftoff?
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Transcribed Image Text:A weather balloon is designed to expand to a maximum radius of 21 m at its working altitude, where the air pressure is 0.030 atm and the
temperature is 200 K. If the balloon is filled at atmospheric pressure and 304 K, what is its radius at liftoff?
m
The density of helium gas at 0°C is po 0.179 kg/m³. The temperature then raised to 7- 110°C, but the pressure is kept constant. Assuming
that helium is an ideal gas, calculate the new density py of the gas
kg/m³
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