The same volume of all gases is representative of their_____________________?
Correct answer: D. Molecular weights
- A. Specific gravities
- B. Densities
- C. Gas characteristic constants
- D. Molecular weights
Explanation
At the same temperature and pressure, equal gas volumes contain equal numbers of molecules, so their masses, and hence densities, are proportional to molecular weight. This is the basis for using equal-volume gas samples to compare molecular weights.
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