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- Complete the following sentence: Moist air is ________ dense than dry air beca

ID: 941048 • Letter: #

Question

- Complete the following sentence:

Moist air is ________ dense than dry air because _________________________________________________________________.

Moist air is ________ dense than dry air because _________________________________________________________________.

Moist air is less dense than dry air because a water molecule occupies the same volume as an oxygen or nitrogen molecule, but has less mass. Moist air is more dense than dry air because a water molecule occupies the same volume as an oxygen or nitrogen molecule, but has more mass. Moist air is less dense than dry air because a water molecule occupies a larger volume than an oxygen or nitrogen molecule. Moist air is more dense than dry air because the water molecules are inserted between the oxygen and nitrogen molecules. This adds to the mass but does not change the volume.

Explanation / Answer

Moist air is LESS dense since it contains moisture (i.e.water) and substitutes H2O for O2 or N2 which are heavier molecules

Moist air is less dense than dry air because a water molecule occupies the same volume as an oxygen or nitrogen molecule, but has less mass.