Question #55e59

2 Answers
Oct 4, 2015

Less molar mass

Explanation:

Nitrogen has a smaller molar mass (14) than oxygen (16). Hope it helps :D .

Oct 4, 2015

Nitrogen gas is less dense than air.

Explanation:

Nitrogen is lighter than air because it has a lower density than air. The density of "N"_2N2 gas at STP is "1.2056 kg/m"^3"1.2056 kg/m3, and the density of air at STP is "1.293 kg/m"^3"1.293 kg/m3. So, there is less mass of "N"_2N2 per cubic meter, and a greater mass of air per cubic meter.

http://www.engineeringtoolbox.com/gas-density-d_158.html