Gasi Olimba (komanso mosemphanitsa)

Zamkati

• Zitsanzo kuchokera ku olimba mpaka gaseous (sublimation)
• Zitsanzo kuchokera ku Gaseous mpaka Olimba (Reverse Sublimation)

Chofunika ndi chilichonse chomwe chimakhala ndi misa komanso thupi ndipo chimakhala m'malo. Ikhoza kupezeka m'maiko atatu: madzi, olimba komanso opumira. Dziko lirilonse liri ndi mawonekedwe a thupi omwe amadziwika nalo.

Zinthu zikawonekera pakusintha kwakukulu pamavuto kapena kutentha, zimatha kusintha pamalire ake (kuchokera olimba mpaka gaseous, kuchokera kumadzimadzi kupita kolimba, kuchokera ku gaseous kupita kumadzi komanso mosemphanitsa). Nthawi zonse pomwe kusintha kwakanthawi kumachitika, sikusintha kukhala chinthu china koma kumasintha mawonekedwe ake osasintha kapangidwe kake ka mankhwala.

Zochitika zomwe zimachitika zinthu zikamachoka pamalo olimba (zimakhala ndi mawonekedwe) kupita ku gaseous (ilibe voliyumu kapena mawonekedwe ndikufutukuka momasuka), mosemphanitsa, ndi:

• Sublimation. Phenomenon potengera momwe zinthu zimakhalira kuchokera kumalo olimba kupita ku gaseous popanda kudutsa madzi. Mwachitsanzo: mothball yomwe imatha pang'onopang'ono kuchoka pachilichonse mpaka kuzizira, madzi oundana (owuma mpweya woipa). Katunduyu amatenga mphamvu yochulukirapo kuchokera kumalo ake.
• Chosintha mafunsidwe kapena sublimation. Zodabwitsa zomwe zinthu zimachokera ku gaseous kupita ku state yolimba. Tinthu timene timatulutsa mpweya timaphatikizana mopitilira momwe zimakhalira ndipo timapita molimba osadutsa momwemo. Kusintha kwamtunduwu nthawi zambiri kumaperekedwa ndikutsika kwa kutentha komanso pansi pazovuta zina. Mwachitsanzo: mapangidwe a chisanu kapena chisanukuti. Izi zimatulutsa mphamvu.

Komabe, nthawi zambiri chinthucho chimachoka pagalasi kupita kumalo amadzimadzi (condensation) kuchokera pamenepo kupita kolimba. Kusintha kuchokera ku gaseous kukhala kolimba (komanso mosemphanitsa) kumachitika mwanjira zina.

• Itha kukuthandizani: Kusintha kwakuthupi

Zitsanzo kuchokera ku olimba mpaka gaseous (sublimation)

1. Sulufule. Sublimates pa kutentha mu mpweya ndi mkulu mlingo wa kawopsedwe.
2. Ayodini wolimba. Pambuyo pa sublimation imasandutsa gasi wonyezimira.
3. Arsenic. Pa kuthamanga kwa mlengalenga kumachepetsa mpaka 613 ° C.
4. Ice kapena chisanu Imatha kutentha pamunsi pamadzi osakwana 0 ° C.
5. Asidi Benzoic Omvera pamwamba pa 390 ° C.
6. Camphor. Sublimates pa kutentha kwina.
7. Kupaka piritsi. Imachepetsa pang'onopang'ono ngati naphthalene.

• Zitsanzo zambiri mu: Sublimation

Zitsanzo kuchokera ku Gaseous mpaka Olimba (Reverse Sublimation)

1. Mitsizi. M'malo otentha komanso ampweya, imatuluka, imakumana ndi makoma a chimney ndikukhazikika.
2. Chipale chofewa. Kutentha kochepa kumapangitsa kuti nthunzi yamadzi m'mitambo isanduke chisanu.
3. Makhiristo a ayodini. Mukatenthetsa, kutulutsa nthunzi, zomwe zimakhudzana ndi chinthu chozizira zimasandulidwanso kukhala makhiristo a ayodini.