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

question 19

Multiple Choice

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

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

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