AIR Formula N/A Molecular Weight (g/mol) 28.96 Critical Temp. (°F) N/A Critical Pressure (psia) N/A Boiling Point (°F) -317.8 Melting Point (°F) N/A Gas Density @ 70°F 1 atm (lb/ft3) 0.075 Specific Volume @ 70°F 1 atm (ft3/lb) 13.3 Specific Gravity 1 Specific Heat @ 70°F (Btu/gmol-°F) 6.96 NITROGEN Formula N2 Molecular Weight (g/mol) 28.01 Critical Temp. (F) -232.5 Critical Pressure (psia) 492.3 Boiling Point (F) -320.5 Melting Point (F) -345.9 Gas Density @ 70F 1 atm (lb/ft3) 0.073 Specific Volume @ 70F 1 atm (ft3/lb) 13.8 Specific Gravity 0.967 Specific Heat @ 70F (Btu/gmol-F) 6.97 « | 1 | 2 | 3 | View Full Article Enjoyed this Post? Subscribe to our RSS Feed, or use your favorite social media to recommend us to friends and colleagues!