2006-09-20 20:25:05 · 5 answers · asked by Die or answer 2 in Science & Mathematics ➔ Weather
Dry air doesn't have any water in it. The water that is evaporated in moist air causes it too cool and contract creating a greater density. The greater density something has, the heavier it is.
2006-09-20 20:28:24 · answer #1 · answered by cman 3 · 1⤊ 0⤋
Moisture is composed of evaporated H2O (one oxygen and a pair of hydrogens). lots of the user-friendly gases in air are diatonic (cutting-edge in pairs) which incorporates oxygen and nitrogen. So the question fairly is whether or not oxygen plus 2 hydrogens weighs greater or under 2 nitrogens or 2 oxygens. No contest, moisture is quite mild and makes the air lighter. of direction for the time of evaporation, moisture has a cooling result because it absorbs latent potential and funky air is heavier than heat air. yet after the air mass returns to typical room temperature, moist air is lighter. Moisture evaporates from a lake and rises in a column to sort a cloud. it would not upward thrust if it grew to become into heavier, top?. wish this is clever.
2016-12-15 11:34:14 · answer #2 · answered by Anonymous · 0⤊ 0⤋
Moist air contains water vapor. Water vapor is heavier than the mix of gasses that makes up the air.
2006-09-21 03:06:40 · answer #3 · answered by Barret 3 · 0⤊ 0⤋
H20 has an atomic mass of 18
02 has an atomic mass of 32
N2 has an atomic mass of 28
The average atomic mass of dry air =~29 (.8*28+.2*32)
as water "dissolves" in air it displaces some of the O2 and N2. Since water vapor is lighter than the average mass of dry air, the new average mass must be smaller.
2006-09-20 20:42:43 · answer #4 · answered by Helmut 7 · 0⤊ 0⤋
do you want to rephrase your question
2006-09-21 01:22:58 · answer #5 · answered by bprice215 5 · 0⤊ 0⤋