Which Molecule Moves with the Fastest Average Speed While Being

question 14

Multiple Choice

Which molecule moves with the fastest average speed while being bound in Earth's atmosphere in thermal equilibrium?

• A) water, H₂O (atomic mass = 18)
• B) carbon dioxide, CO₂ (atomic mass =44)
• C) nitrogen (atomic mass= 28)
• D) oxygen (atomic mass = 32)
• E) hydrogen, H₂ (atomic mass = 2)

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