Question

A weather balloon is inflated with Helium.The balloon has a volume of 100 M³ and it must be inflated to a pressure of 0.10 atm. if 50L gas cylinders of helium at a pressure of 100 ATM used, how many cylinders are needed? Assume That the temperature is constant.

Answer 1

ANSWERS :-


Volume of He at 0.1 atm

p1v1 = p2v2

50 * 100 = 0.1 * v2

v2 = 50 * 100/0.1

v2 = 50 * 100 * 10

v2 = 50000 L


volume available for balloon = 49950 L

= 49.95 m³


volume of balloon = 100 m³

so,

2 cylinder required.


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