Question

I got a right but I got two wrong

Balloons are still used to deploy sensors that monitor meteorological phenomena and the chemistry of the atmosphere. It is to investigate some of the technicalities of ballooning by using the perfect gas law. Suppose your balloon has a radius of 1.5 m and that it is spherical. (a) What amount of H2 (in moles) is needed to infate it to 1.0 atm in an ambient temperature of 25'C at sea level? (b) What mass can the balloon lift (the payload) at sea level, where the mass density of air is 1.22 kg-m3 (c) What would be the payload if He were used instead of H2? 9

Answer 1