Weight of 1 m3 of humid air as compared to 1 m3 of dry air, under the same conditions, is_________________?
Correct answer: A. Less
- A. Less
- B. More
- C. Same
- D. Unpredictable
Explanation
At the same temperature, pressure, and volume, water vapour replaces part of the dry air and has a lower molecular mass than air. Therefore humid air weighs less than an equal volume of dry air.
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