O-LevelChemistryStoichiometry5070/11 · Oct/Nov 2012 · Q41 Mark
Which statement explains why the gases propane, C3H8, and carbon dioxide, CO2, diffuse at the same rate at room temperature and pressure?
ABoth are denser than air.
BBoth compounds contain carbon.
CBoth molecules contain covalent bonds.
DThey have the same relative molecular mass, Mr.
✓ Correct answer
D: They have the same relative molecular mass, Mr.
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