項(xiàng) 目 | 屬 性 |
化學(xué)式 | N2 |
相對(duì)分子質(zhì)量 | 28.013 |
熔點(diǎn) | 63.15K,-210℃ |
沸點(diǎn),101.325kPa(1atm)時(shí) | 77.35K,-195.8℃ |
臨界溫度 | 126.1K,-147.05℃ |
臨界壓力 | 3.4MPa,33.94bar,33.5atm,492.26psia |
臨界體積 | 90.1cm3/mol |
臨界密度 | 0.3109g/cm3 |
臨界壓縮系數(shù) | 0.292 |
液體密度,-180℃時(shí) | 0.729g/cm3 |
液體熱膨脹系數(shù),-180℃時(shí) | 0.00753 1/℃ |
表面張力,-210℃時(shí) | 12.2×10-3 N/m,12.2dyn/cm |
氣體密度,101.325 kPa(atm)和70F(21.1℃)時(shí) | 1.160kg/m3,0.0724 lb/ft3 |
氣體相對(duì)密度,101.325 kPa(1atm)和70F時(shí)(空氣=1) | 0.967 |
汽化熱,沸點(diǎn)下 | 202.76kJ/kg,87.19 BTU/1b |
熔化熱,熔點(diǎn)下 | 25.7kJ/kg,11.05 BTU/1b |
氣體定壓比熱容cp,25℃時(shí) | 1.038kJ/(kg· k),0.248 BTU/(1b·R) |
氣體定容比熱容cv,25℃時(shí) | 0.741kJ/(kg· k),0.177 BTU/(1b·R) |
氣體比熱容比,cp/cv | 1.401 |
液體比熱容,-183℃時(shí) | 2.13kJ/(kg·k),0.509 BTU/(1b·R) |
固體比熱容,-223℃時(shí) | 1.489kJ/(kg·k),0.356 BTU/(1b·R) |
溶解度參數(shù) | 9.082(J/cm3 )0.5 |
液體摩爾體積 | 34.677cm3 /mol |
在水中的溶解度,25℃時(shí) | 17.28×10-6(w) |
氣體黏度,25℃時(shí) | 175.44×10-7Pa·s,175.44μP |
液體黏度,-150℃時(shí) | 0.038mPa ·s,0.038 cp |
氣體熱導(dǎo)率,25℃ 時(shí) | 0.02475W/(m · K) |
液體熱導(dǎo)率,-150℃時(shí) | 0.0646W/(m · K) |