A Mole of Diatomic Oxygen Molecules and a Mole of Diatomic

question 352

Multiple Choice

A mole of diatomic oxygen molecules and a mole of diatomic nitrogen molecules are at STP. Which statements are true about these molecules? (There could be more than one correct choice.)

• A) Both gases have the same average momentum per molecule.
• B) Both gases have the same average kinetic energy per molecule.
• C) Both gases have the same average molecular speeds.
• D) Both gases have the same number of molecules.

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