Four Identical 1

question 70

Multiple Choice

Four identical 1.0-L flasks contain the gases He, Cl₂, CH₄, and NH₃, each at 0°C and 1 atm pressure.
-For which gas do the molecules have the highest average velocity?

• A) He
• B) CH₄
• C) NH₃
• D) Cl₂
• E) The molecules of all the gases have the same average velocity.

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