Assignment:
Suppose your balloon has a radius of 3 m and that it is a spere when inflated.
a.) How much H is needed to inflate it to a pressure of 1 atm at an ambient T of 25 celsius @ sea level?
b.) What mass can the balloon lift @sea level, where the density of air is 1.22 kg m^-3 ?
c.) What would be the payload if helium were used instead of hydrogen?
d.) Would you and a companion on board, the balloon ascends to 30,000 feet where pressure is 0.28 atm. Assume no volume change, what is the temp (in celsius) at 30,000 feet?
Provide complete and step by step solution for the question and show calculations and use formulas.