Kapangidwe ka Thupi ndi Mankhwala a Mpweya Wabwino
Mpweya wodziwika bwino ndi gulu la zinthu za mankhwala zomwe zimapezeka mu Gulu 18 la tebulo la periodic. Mamembala a gululi ndi monga helium (He), neon (Ne), argon (Ar), krypton (Kr), xenon (Xe), ndi radon (Rn). Mpweya uwu uli ndi zinthu zapadera zakuthupi ndi zamakemikolo, zomwe zimapangitsa kuti zikhale zosangalatsa kuziphunzira ndikugwiritsa ntchito m'magawo osiyanasiyana. Nkhaniyi ifotokoza mwatsatanetsatane za zinthu zakuthupi ndi zamakemikolo zamagasi odziwika bwino.
Katundu Wachilengedwe wa Mpweya Wabwino
Mpweya wabwino uli ndi zinthu zingapo zakuthupi zomwe zimakhala zofanana m'magawo awo onse.
1. Mikhalidwe pa Kutentha ndi Kupanikizika Koyenera: Pa kutentha ndi kupanikizika koyenera (STP), mpweya wonse wabwino uli mu gawo la mpweya. Helium ili ndi malo otsika kwambiri osungunuka ndi kuwira, pomwe radon ili ndi mpweya wapamwamba kwambiri pakati pa mpweya wabwino.
2. Zopanda Mtundu, Zopanda Fungo, ndi Zopanda Kukoma: Mpweya uliwonse wabwino kwambiri womwe uli m'thupi lawo loyera ndi wopanda mtundu, fungo, komanso wopanda kukoma. Izi zimapangitsa kuti anthu asazindikire mpweyawu.
3. Kuchulukana ndi Kuchulukana kwa Misa: Mpweya wabwino uli ndi kuchulukana komwe kumawonjezeka ndi kuchuluka kwa atomu. Helium ndiye mpweya wabwino kwambiri, ndipo radon ndiye wolemera kwambiri. Kuchulukana kwa mpweya wabwino kumawonjezekanso ndi kuchuluka kwa atomu.
4. Malo Owira ndi Malo Osungunuka: Malo owira ndi malo osungunuka a mpweya wabwino amawonjezeka kuchokera ku helium kupita ku radon. Mwachitsanzo, helium ndi madzi okha kutentha komwe kuli pafupi ndi zero (-272°C), pomwe radon ndi madzi pafupifupi -61,8°C.
5. Kuyendetsa Magesi ndi Kutentha: Helium ili ndi mphamvu yoyendetsa kutentha kwambiri pakati pa mpweya wabwino ndipo nthawi zambiri imagwiritsidwa ntchito mu njira zoziziritsira kutentha zomwe zimayaka ndi cryogenic. Mpweya wina wabwino uli ndi mphamvu yoyendetsa kutentha yochepa. Mpweya wonse wabwino ndi woteteza magetsi wabwino pansi pa mikhalidwe yabwino koma ukhoza kukhala woyendetsa pansi pa mikhalidwe ina, monga m'ma nyali oyaka kapena machubu otulutsa mpweya.
6. Kuchuluka kwa Mpweya: Argon ndiye mpweya wabwino kwambiri padziko lonse lapansi, womwe umapanga pafupifupi 1% ya kuchuluka kwa mpweya. Neon, krypton, ndi xenon zimapezeka pang'ono kwambiri. Helium ndi yosowa kwambiri mumlengalenga chifukwa nthawi zambiri imathawa kupita mumlengalenga, koma imapezekabe m'malo osungira mpweya wachilengedwe. Radon, mpweya wabwino kwambiri, umapezeka m'malo ochepa omwe umapezeka mu uranium ndi thorium.
Katundu wa Mankhwala a Mpweya Wabwino
Makhalidwe a mankhwala a mpweya wabwino amasonyezanso kusinthasintha kwina komwe kumawapangitsa kukhala apadera pakati pa zinthu zina.
1. Kuchepa kwa Mphamvu: Mpweya wabwino umadziwika ndi kuchepa kwa mphamvu zake zogwirira ntchito. Izi zimachitika chifukwa cha kapangidwe kake kokhazikika ka ma elekitironi, mogwirizana ndi mfundo ya octet, komwe chipolopolo chakunja chimakhala chodzaza. Chifukwa chake, mpweya wabwino nthawi zambiri sugawana, kulandira, kapena kutulutsa ma elekitironi, zomwe zimapangitsa kuti asagwirizane ndi zinthu zina.
2. Kupanga Ma Compound: Ngakhale kuti mpweya wabwino nthawi zambiri umakhala wopanda mphamvu, pali zinthu zina zomwe zimapangitsa kuti upange ma compound. Mpweya woyamba wabwino unapangidwa bwino mu 1962 pamene Neil Bartlett anakonza bwino xenon hexafluoroplatinate (XePtF6). Kuyambira pamenepo, ma compound ena angapo a xenon ndi, pang'ono, krypton apezeka, monga xenon tetrafluoride (XeF4) ndi krypton difluoride (KrF2).
3. Mphamvu ya Kugwirizana kwa Ma Electron ndi Ionization: Mpweya wabwino kwambiri uli ndi mphamvu yochepa kwambiri ya ma electron, ndipo mphamvu yake ya ionization ndi yayikulu kwambiri. Mphamvu yayikulu ya ionization imapangitsa kuti zikhale zovuta kuchotsa electron kuchokera ku atomu ya mpweya wabwino, zomwe zimafotokoza chifukwa chake sizigwira ntchito bwino.
4. Ma Complex Compounds: Mpweya wina wabwino kwambiri ukhoza kupanga ma compounds ovuta, makamaka pamikhalidwe yovuta kwambiri. Mwachitsanzo, xenon imatha kuchitapo kanthu ndi fluorine pamikhalidwe ina kuti ipange ma compounds monga xenon hexafluoride (XeF6).
5. Kusakhazikika kwa Ma Radon Compounds: Ma compounds okhala ndi radon ndi osowa kwambiri komanso osakhazikika chifukwa radon ndi chinthu chowopsa chomwe chimakhala ndi nthawi yochepa poyerekeza ndi zinthu zina. Chifukwa chake, ma radon nthawi zambiri sakhala okhalitsa komanso ovuta kusunga.
Kugwiritsa Ntchito Mafuta Olemekezeka
Mpweya wabwino, wokhala ndi makhalidwe ake apadera, uli ndi ntchito zosiyanasiyana m'mafakitale ndi m'moyo watsiku ndi tsiku.
1. Kuunikira ndi Zowonetsera: Neon imagwiritsidwa ntchito mu magetsi a neon ndi zizindikiro za neon zomwe zimapangitsa kuwala kowala. Xenon imagwiritsidwa ntchito mu mababu ojambula zithunzi ndi magetsi a galimoto.
2. Kuziziritsa: Helium imagwiritsidwa ntchito ngati choziziritsira madzi chifukwa imakhala ndi malo otsika kwambiri osungunuka. Helium yamadzimadzi imagwiritsidwa ntchito kuziziritsa maginito mu makina a MRI (Magnetic Resonance Imaging).
3. Chodzaza Gasi Chopanda Mphamvu: Argon nthawi zambiri imagwiritsidwa ntchito ngati mpweya woteteza polumikiza kuti chitsulo chisawonongeke. Mofananamo, mpweya wina wabwino umagwiritsidwa ntchito ngati chodzaza chosagwiritsa ntchito mphamvu m'malo osiyanasiyana omwe amafunika malo osagwira ntchito, monga m'machubu a nyali za fluorescent ndi zowunikira ma radiation.
4. Zachipatala: Helium imagwiritsidwa ntchito mu mpweya wosakaniza kupuma pochiza odwala omwe ali ndi mavuto opuma chifukwa imakhala ndi mpweya wochepa. Xenon imagwiritsidwa ntchito ngati mankhwala oletsa ululu m'njira zina zachipatala chifukwa chakuti imatha kuchepetsa zotsatirapo zake.
5. Maloboti ndi Malo: Helium imagwiritsidwa ntchito m'mabaluni a nyengo ndi zida zina zosawononga m'ndege ndi mlengalenga chifukwa cha mphamvu zake zosagwira ntchito komanso zopepuka.
Mapeto
Mpweya wabwino ndi gulu la zinthu za mankhwala zomwe zili ndi makhalidwe apadera a thupi ndi mankhwala. Kuchepa kwa reactivity yawo, kukhazikika kwa mankhwala, ndi makhalidwe enieni a thupi zimawapatsa ntchito zambiri m'mbali zosiyanasiyana za ukadaulo ndi mafakitale. Kuyambira kuunikira mpaka kuzizira kwa cryogenic, mpweya wabwino umapezeka mu matekinoloje angapo ofunikira omwe amathandiza miyoyo yathu ya tsiku ndi tsiku. Kumvetsetsa makhalidwe ndi makhalidwe a mpweya wabwino kumatithandiza kugwiritsa ntchito mphamvu zonse za zinthuzi m'njira zosiyanasiyana zasayansi ndi mafakitale.
