Molecular speeds: A mole of oxygen (O₂) molecules and a mole of carbon dioxide (CO₂) molecules at the same temperature and pressure have A) the same average molecular speeds. B) the same number of atoms. C) different average kinetic energy per molecule. D) the same number of molecules. E) different volumes.

Question

Quizplus · Accepted Answer

At the same temperature and pressure, a mole of any gas contains the same number of molecules, according to Avogadro's law.

Molecular Speeds: a Mole of Oxygen (O2) Molecules and a Mole

Molecular Speeds: a Mole of Oxygen (O₂) Molecules and a Mole