If Equal Masses of O₂(g) and HBr(g) Are in Separate

question 134

Multiple Choice

If equal masses of O₂(g) and HBr(g) are in separate containers of equal volume and temperature, which one of the following statements is true?

• A) The pressure in the O₂ container is greater than that in the HBr container.
• B) The average velocity of the O₂ molecules is less than that of the HBr molecules.
• C) The average kinetic energy of HBr molecules is greater than that of O₂ molecules.
• D) The pressures of both gases are the same.