Kua nitrogen kub

Kua nitrogen yog ib tug pob tshab khoom uas tej ceev 0,808 g / cm³. Qhov no - ib qho ntawm lub aggregation mob nyob rau hauv uas yuav ua tau nitrogen, lub kub kub ntawm -195,75 C. Kua nitrogen yog tsis lom thiab yog tawg-pov thawj.

Ib tug feature ntawm lub lag luam thiab cia cov kua nitrogen yog hais tias thaum rhuab, nws expands heev, piv txwv li, qhov kub thiab txias yog tsa xwb mus rau 20 C, ib liter ntawm cov ntaub ntawv uas yog tsim nyob rau txog 700 litres ntawm cov roj. Yog li ntawd, cia thiab kev thauj mus los ntawm nws tshwj xeeb ntim yog siv, qhov thiaj li hu ua Dewar hlab ntsha uas muab lub tshuab nqus tsev rho tawm.

Kua nitrogen yog pom heev lug siv nyob rau hauv ib tug ntau yam ntawm tib neeg kev ua si, nyob rau hauv ntau txoj kev, qhov no yog vim thoob plaws siv cov cuab yeej no raws li cov kub ntawm cov kua nitrogen. Nws yog siv nyob rau hauv lag luam uas nws yog tsim nyog rau kev siv ntawm cryogenic technology ntawm tej co. Ib tug heev uas tsis muaj kub ntawm cov kua nitrogen tso cai nws siv nyob rau hauv sib sib zog nqus khov, thiab nyob rau hauv daim teb no nws yog haum rau ob qho tib si inorganic cov ntaub ntawv thiab organic, xws li muaj sia nyob.

Muaj lwm yam kev siv muaj xws li: tua hluav taws sib ntaus sib tua thiab cua txias ntau chav nyob thiab kev pab kiag li lawm, cryopreservation hlwb overclocking.

Thaum atmospheric siab, kua nitrogen kub hauv qab no lub hws kub ntawm cov pa ntawm 10 degrees, txawm li cas los, raws li ib tug txoj cai, nyob rau hauv hlab ntsha yuav tsum tau cai condensate tshuaj precipitate.

Los ntawm virtue ntawm qhov tseeb hais tias lub kub taw tes ntawm nitrogen yog nyob rau hauv lub kua hauv lub xeev - 195,8 C, uas yog qis dua hais tias ntawm lub kua oxygen nyob rau hauv uas nws yog - 183 C, lub txiaj ntsim ntawm lawv cov kev sis raug zoo kua cua enriched nrog cov pa sai sai heev. Qhov no kuj qhia txog qhov sib txawv nyob rau hauv lub kub thiab qhov ntau mob siab heev lub evaporation ntawm cov kua nitrogen, muab piv nrog lub kua oxygen.

Xyaum tej kub uas tshaj qhov taw qhia rau cov kua nitrogen, yuav tsum tau cai thaum koj coj cov nram qab no xyaum ua tej yam. Qhov tseem ceeb rau qhov no txhuas thaiv tau txias, yog hais tias nws maj mam nrog kua kua cua.

Nyob rau hauv niaj hnub siv tshuab qhov kub ntawm cov kua nitrogen raws li ib tug yooj yim cuab yeej ntawm cov ntaub ntawv los thoob plaws siv nyob rau hauv hluav taws xob thiab hluav taws xob industries ntawm semiconductors, uas li tau txhim khu kev qha txias.

Nyob rau tib lub hauv paus ntsiab lus, thiab daim ntaub ntawv raws li yam khoom uas raws li ib feem ntawm ntau yam hluav taws kub mixtures. Nyob rau hauv tus txheej txheem ntawm extinguishing nitrogen suab heev sai sai thiab, yog li, displaces lub oxygen, uas ua nyob rau hauv lub txiav ntawm kev nkag tau ntawm oxygen mus rau qhov hluav taws kub hluav taws hluav taws kub yog laus thiab tsis kiag li. Vim li no cov nyhuv hnub no nitrogen hluav taws-sib ntaus sib tua tswv zoo tshaj dua li carbon-dioxide. Thaum uas siv cov xws technologies, ib tug high degree ntawm preservation ntawm wealth.

Nyob rau hauv kev, cov nyhuv ntawm cov kua nitrogen muaj lub peev xwm los mus saib xyuas yuav luag txhua txhua, yog koj tig nws xim rau muab movie-li, siv nyob rau hauv lub filming ntawm kev kawm films. Piv txwv li, nyob rau hauv cov yeeb yam 'Lub Terminator' siv lug los tau los ntawm kev siv kua nitrogen (ntas, uas qhia tau instant khov chaw). Tab sis qhov no nyhuv yuav ua tau ntau npaum li cas npaj incarnation. Piv txwv li, tsawg kub nitrogen tso cai nws siv rau ceev te analgesic cim. Qhov no peb yuav feem ntau soj ntsuam thaum lub sij hawm ib tug ntaus pob ncaws pob kev tshwm sim, thaum ib tug neeg ncaws kab taub yog raug mob, thiab nws thawj pab los ntawm lub zos aerosol tshuaj loog.

Ntau txawv, yog hais tias tsis zoo heev, tam sim no sawv kev siv ntawm cov tshuaj yeeb dej caw raws li ib tug txhais tau tias ntawm khov ntawm nyob quavntsej, nrog ib tug saib kom lawv tom ntej defrosting, thiab khaws cia lom zog.

Nyob rau tib lub sij hawm, ob qho tib si nyob rau hauv lub US thiab nyob rau hauv Russia, muaj cov twb tuam txhab uas yog muag kev koom tes nyob rau hauv cryogenic khov ntawm cov tib neeg thiab tej tsiaj txhu.