Yini engqongqoza kuphethiloli?

Uphethiloli onegama lokuhweba elifanayo kanye nesilinganiso se-octane singahluka kancane ekushayeleni kwezemidlalo okunzima.

Uphethiloli yingxube ye-carbon ne-hydrogen compounds equkethe ama-athomu e-carbon angu-5 kuya kwangu-12 nge-molecule ngayinye. Uphethiloli ongahluziwe, otholakala ngokuqondile ekucwengisweni kukawoyela ongahluziwe, uyahluzwa ukuze ukhiqize izinhlobo zokubasa ezisatshalaliswa ngenjongo yokuthengisa.

Enye yezinkomba ezibaluleke kakhulu ezibonisa ukuziphatha kukaphethiloli ngesikhathi somlilo enjini yinombolo ye-octane. Ikhombisa ukuthi umelana kangakanani nophethiloli ekushiseni kokuqhunyiswa. Ezinye zazo ziqukethe izingxenyana ezilula ze-hydrocarbon. Lokhu kusikeka kunesilinganiso esiphansi se-octane futhi kubangela ukusha kwe-detonation lapho igesi yengezwa ngokushesha.