fire

Fire is the rapid oxidation of a material (the fuel) in the exothermic chemical process of combustion, releasing heat, light, and various reaction products.
Fire is hot because the conversion of the weak double bond in molecular oxygen, O2, to the stronger bonds in the combustion products carbon dioxide and water releases energy (418 kJ per 32 g of O2); the bond energies of the fuel play only a minor role here. At a certain point in the combustion reaction, called the ignition point, flames are produced. The flame is the visible portion of the fire. Flames consist primarily of carbon dioxide, water vapor, oxygen and nitrogen. If hot enough, the gases may become ionized to produce plasma. Depending on the substances alight, and any impurities outside, the color of the flame and the fire's intensity will be different.
Fire in its most common form can result in conflagration, which has the potential to cause physical damage through burning. Fire is an important process that affects ecological systems around the globe. The positive effects of fire include stimulating growth and maintaining various ecological systems.
Its negative effects include hazard to life and property, atmospheric pollution, and water contamination. If fire removes protective vegetation, heavy rainfall may lead to an increase in soil erosion by water. Also, when vegetation is burned, the nitrogen it contains is released into the atmosphere, unlike elements such as potassium and phosphorus which remain in the ash and are quickly recycled into the soil. This loss of nitrogen caused by a fire produces a long-term reduction in the fertility of the soil, but this fecundity can potentially be recovered as molecular nitrogen in the atmosphere is "fixed" and converted to ammonia by natural phenomena such as lightning and by leguminous plants that are "nitrogen-fixing" such as clover, peas, and green beans.
Fire has been used by humans in rituals, in agriculture for clearing land, for cooking, generating heat and light, for signaling, propulsion purposes, smelting, forging, incineration of waste, cremation, and as a weapon or mode of destruction.

View More On Wikipedia.org
  1. Tumbili wa mjini

    Wekeni viti vya kutosha kwenye kituo cha mwendokasi cha Fire!

    Pale kituo cha mwendokasi cha Fire kuna wagonjwa wanaoenda Hospital ya Muhimbili wanasubiri mabasi ya muhimbili, sasa natoa wito kwa serikali kuongeza viti vya kutosha kwenye kituo ili wagonjwa waweze kukaa na kusubir magari. Kama tunavyojua magari yanachelewa kufika na mgonjwa hawezi kusimama...
  2. greater than

    Mafundi Tiles, Rangi, CCTV na Fire Alarm wanicheki

    Kwa vijana wenzangu wenye kujishughulisha na fani za Ufundi Tiles/Marumaru Rangi CCTV, Fire alarm Mnitafute, kuna nafasi ya kupata tenda.
  3. 2 of Amerikaz most wanted

    MARK COLEMAN EX UFC CHAMPION Rescued His Parents From A Burning House Attempted To Serve Their Dog But Collapsed In The Fire

    Former UFC Champion Mark Coleman ran into burning 🔥 house and served both his parents then went back in for their dog 🐶 but passed out in the fire. He is now in critical condition at the hospital, sending our thoughts and players. ⭐ Pubity
  4. Jamii Opportunities

    Supplying, Installing, Testing and Commissioning of Fire Detection, Alarm and Suppression System at TIPER January, 2024

    Invitation To No: Tp/12/2023/Icb/W/028 Supplying, Installing, Testing And Commissioning Of Fire Detection, Alarm And Suppression System Tanzania International Petroleum Reserves Ltd (TIPER) is a hospitality storage facility for bulk fuel with its share divided equally between the Government...
  5. Koffi Annan

    JamiiForums website inapendeza sana na fire bubbles za leo.

    Happy New year family, Japo nimechelewa kuingia kwenye website yangu pendwa ya JamiiForums leo nilivokutana nazo zilinivutia sana na zimenifanya niingie kila muda, Kudos kwa team nzima na technicians kwa ujumla, kazi yenu ni nzuri na inapendeza, Ningeomba kama mlipanga zikae siku moja basi iwe...
  6. sky soldier

    Shangwe zilizopigwa Israel ilipovamiwa siku ya kwanza zipo wapi, Mbona nguvu kubwa inatumika kumpigia magoti Isreal aache kujilinda (cease fire) ?

    Njia pekee ya Israel kujilinda kwa sasa ni kutoa DOZI Nakumbuka siku ya kwanza Israel ilipovamiwa, Hamas waliitwa kila aina ya majina ya kishujaa na shangwe zilipigwa sana kiasi kwamba watu hawa walianza kuota ndoto za mchana kwamba Israel inaenda kumezwa ? Hali ya sasa ni tofauti kabisa, watu...
  7. Jaji Mfawidhi

    Fire Irudishwe Halmashauri: Mambo ya Ndani inachelewesha

    Jeshi la Zimamoto na Uokoaji nchini Tanzania ni chombo cha serikali kinachohusika na masuala ya kuzima moto, uokoaji, na huduma za kwanza katika maeneo ya dharura. Kamishna MASUNGA ameleta mabadiliko makubwa sana, ila bado kuna mengine anapaswa kusaidiwa ama na serikali ama Kuanzishwa: Jeshi la...
  8. P

    Ya bandari yakiendelea, TRA wamepoa, wafanyabiashara sasa tunanyanyaswa na zima moto

    Huo mkwara wao asikwambie mtu, wanavamia dukani kwako kama vile wanatafuta muuaji, haya ukiwauliza kulikoni? Eti wanasema tunadai malipo ya control ya fire, sasa shilingi ngapi? Bei inaanzia 30,000/= mpaka 1,000,000/= kutegemeana na biashara. Tena inaanzia tangu siku ulipojisajili tin number...
  9. maroon7

    Kabla ya kujenga fly over Magomeni na fire panueni barabara Kimara - Ubungo

    Nimeshangazwa sana na huyu waziri kusema wanatafuta hela kujenga fly over magomeni na fire na sehemu zingine lakini cha kushangaza hawajagusia kabisa kupanua kipande sumbufu kwa foleni kutoka ubungo hadi kimara, na barabara ya mandela. Hivi jamani inahitajika hadi aje Tony Blair kutuambia hizi...
  10. K

    Futeni Kodi ya fire

    Binafsi sioni umuhimu wa kutozwa kodi ya fire kutokana na sababu zifuatazo:- (1) Hakuna chombo cha moto wanachotoa kwa wafanyabiashara. Ingekuwa vema kama wanapotozwa kodi wanagawiwa fire extinguisher kitu ambacho hakipo. (2) Hakuna elimu yeyote wanayotoa kwa wafanyabiashara licha kulipa kodi...
  11. Lanlady

    Tshirt za walimu zina label ya keep away from fire!

    Kwenye kipindi kama hiki ndio namkumbuka sana @mpwayunguvillage hasa kuhusu walimu. 😃 mwenyw aina nyingine ya tshirt za watu wazima zenye label ya keep away from fire atume ili tulinganishhe ubora
  12. amadala

    Nahitaji kibali cha kufunga fire extinguisher na vitu kama hivyo

    Hello wadau! Kwenye uelewa wa hivi vitu naomba anipatie Muongozo. Asante
  13. crankshaft

    Nipo nasikiliza kipindi cha watoto, kuna mtoto kaimba wimbo wa Fire wa Zuchu

    Ni hizi redio za mikoani kwenye kipindi cha watoto, leo kwenye kipengele cha vipaji kuna katoto kameimba huu wimbo, kamekariri vizuri kabisa.
  14. Planet FSD

    GRRM: Fundi aliyeficha siri kubwa ya ‘A Song Of Ice and Fire’ na fikira fupi za Wabongo

    George RR Martin huenda akawa muandishi wa muda wote duniani. Msipaniki… HUENDAAAAA….! Series ile pendwa ya muda wote, Game of Thrones, ikitokea kwenye vitabu kadhaa vya G RR Martin. Series ambayo baada ya wabongo kuishtukia utamu wake, ilikuwa ikioneshwa kwenye club za Masaki huko per season...
  15. P

    Barabara ya 12, Tanga: Inadaiwa Polisi na Zimamoto wamempiga mtu mmoja aliyesaidia kuzima moto

    Inasemekana nyumba ya jirani ilikuwa inaungua, na huyu jamaa nyumbani kwao kuna kisima cha maji so akajitolea pamoja na wasamaria wengine kuchota maji na kuzima moto huo, huku wakipiga simu taasisi ya zima moto kwa ajili ya msaada zaidi. Bahati mbaya fire brigade wakachelewa kufika hadi moto...
  16. Ephraim fundi umeme

    Nimesoma IT, Electrical Installation, pamoja na kufunga Camera System, Fire Alarms, Electric Fence, WI-FI setup - natafuta kazi

    Habari za jioni waungwana. Kama nilivyoeleza hapo juu kwenye heading hio, Nimefanya kazi zote hizo kwa muda tofauti tofauti na bado hahusika nazo mpaka Sasa. Nimekuja kwenu kuomba msaada wa kampuni, shirika, mtu binafsi atakayeweza/kuwa tayari kufanya kazi na mimi. Napatikana mkoa wa...
  17. Bujibuji Simba Nyamaume

    Nataka ninunue Grundig Fire Tv, je nitaipata wapi?

    Grundig Fire TV ndio TV 📺 ya kwanza kutengenezwa kwa mfumo wa OLED. Je kwa Dar es Salaam naweza kupata bidhaa hii ya Kijerumani au mpaka niagize nje?
  18. olele

    Tukio la Moto lilitokea leo Magomeni Mapipa, na kuteketeza kila kitu

    Kutokana na tukio la Moto lilitokea leo Magomeni Mapipa, na kuunguza kila kitu. Kwa wale wanaojua hilo eneo liko umbali wa mwendo dakika pungufu ya 10 TUkutoka makao makuu ya jeshi la zimamoto Tanzania na ukizingatia leo ni jumapili hakuna foleni, nyumba zilizoungua ziko barabarani kweupe...
  19. Analogia Malenga

    Rais Samia: Mawaziri na Manaibu wenu, msigombane kisa safari

    Rais Samia Suluhu Hassan amewataka Mawaziri wasiwe na ugomvi na Manaibu Waziri kwa kuwa kila mmoja ameteuliwa kwa vigezo tofauti. Ametaka kila mtu ajue nafasi yake. Amesema mara nyingi watu hugombana kwa sababu ya safari na maslahi ambayo mara nyingine huwa ni maslahi ya wananchi. Rais amesema...
Back
Top Bottom