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

A mole of any substance contains the same number of molecules, Avogadro's number, regardless of the type of gas.

A Mole of Oxygen (O2) Molecules and a Mole of Carbon

A Mole of Oxygen (O₂) Molecules and a Mole of Carbon