Question

A ballon with diameter 20m and radius 10m, Weight of empty ballon is 100kg and ballon is filled with helium gas helium molecular weight is 4g, pressure is 1 atm, R is 0.0821 latm k¹ mil¹, density is 1.2

Answer 1

Answer:

please click on images and see your answer you did not understand that I will write.

Explanation:

Volume of balloon =

3

4

πr

3

=

3

4

×

7

22

×(10)

3

=4190.47 m

3

Mass of the air displaced =4190.47×1.2=5028.56 kg

No. of moles of helium in the balloon =

RT

PV

=

0.082×300

1×4190.47×10

3

=170344

Mass of helium =4×170.344×10

3

g=681.376 kg

Mass of filled balloon =681.376+100=781.376 kg

Payload = Mass of air displaced − Mass of filled balloon =5028.56−781.376=4247.184 kg.