Question

out of dry and wet air which is heavier and why

Answer 1

Dry” air contains no water vapor, and is mostly a mixture of molecular nitrogen (N2) and molecular oxygen (O2). The molecular weight of dry air is 28.97 grams per mole. Since mole per mole, dry air is heavierthan water vapor, any mixture ofdry air with water vapor will weigh less than pure dry air.