m 10.49 7o17 Corstants 1 Benodc Table art A hich of the following staterments be
ID: 1039749 • Letter: M
Question
m 10.49 7o17 Corstants 1 Benodc Table art A hich of the following staterments best explains why a closed balloon tiled with helium gas ses n ar? Because helium has a lowr mokar mas than the average sir molocude, he helum atom s are in faster motion This means that th temperatare ot the helium is higher than the air tomperature Hot gases tend t O Because the helium atoms are of lower mass than the average air molecule, the helium gas its less dense than ai The baloon thus weighs ls than the ar O Helium is a monatomic gas, whereas nearly all the molecules that make up air, such as nitrogen and oxygen, are diatomic O The average speed of helium atoms is higher than the average speed of air molecules, and the higher speed of collisions with the baloon wals peopels the buailoon upward Bubma Next eedbackExplanation / Answer
The correct statement is option 2
Because Helium atoms are of lower mass than average air moleucles , the helium gas is less dense than air. The baloon thus weights less than the air displaced by its volume
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