Question: A balloon 16 m in diameter is inflated with helium at 18C. (a) Calculate the mass of He in the balloon, assuming ideal behavior. (b)

A balloon 16 m in diameter is inflated with helium at 18°C.
(a) Calculate the mass of He in the balloon, assuming ideal behavior.
(b) Calculate the work done (in joules) during the inflation process if the atmospheric pressure is 98.7 kPa?

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