Hi, as the topic stated, i would like to find out, does the humidity in the air affect the density??
That's exactly it - diatomic molecules N2 and O2 have approximate molecular masses of 28 and 32 (and air is 78+% N and 21+% O with traces of other gases), which in humid air are displaced by H2O, which has a molecular mass of 18.BobG said:The molar mass of air is almost 29. The molar mass of water is 18. The more 'less dense' gas you have intermixed into the air, the less dense the air. So, yes, humid air is less dense than dry air.