Estimate the volume of a helium-filled balloon at STP if it is to lift a payload of 500 kg.The density of air is 1.29 kg/m3 and helium has a density of 0.178 kg/m3.
A) 4 410 m3
B) 932 m3
C) 450 m3
D) 225 m3
Correct Answer:
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