http___livro-ensino-medio.f1cf.com.br_quimica_hr_chemistry-188.html_1.xml
1.1 2.1 3.1 4.1 5.1 6.1 7.1 8.1 9.1 10.1 11.1 12.1 16.1 17.1 18.1 19.1 20.1 21.1 22.1 23.1 24.1 25.1 26.1 28.1
School OIL GASOLINE, is one of the main products of the distillation of petroleum because of its use in internal combustion engines. The gasoline consists of hydrocarbons six carbons to 10 carbons. Some of these carbon chains burn very well inside the engine. Other carbon chains do not detonate at the right time. Knocking out of time leads to loss of power and the engine begins to "knock". To prevent gas blow ahead of time, antiknock substances are added to it. Some of these substances are isooctane tetraethyl lead, Pb (C MTBE (methyl tert-butyl ether) and ethanol. The quality of a fuel to generate power without the occurrence of engine detonation in advance is measured by a scale called octane index. To scale, isooctane is assigned to the octane number 100 and the n-heptane is assigned the value zero. The octane rating of gasoline is equivalent to the Brazilian gasoline found in the United States and Europe. She obeys a world ranking. * Check the values below: Another fractionation product is diesel oil which is used mainly in motors which require large torque at low speed, as in the case of diesel engines. In Brazil, due to the structure refining, most cars made using gasoline as fuel. Trucks, tractors, agricultural machinery, trains, utilities and stationary power generators are diesel-powered. Its unique feature is the viscosity, whereas, with this property is guaranteed lubrication. Synthetic Chemistry
1.1 2.1 3.1 4.1 5.1 6.1 7.1 8.1 9.1 10.1 11.1 12.1 16.1 17.1 18.1 19.1 20.1 21.1 22.1 23.1 24.1 25.1 26.1 28.1
Škola ULJE BENZIN, jedan je od glavnih produkata destilacije nafte zbog svoje uporabe u motorima s unutarnjim izgaranjem. Benzin se sastoji od ugljikovodika šest ugljika do 10 ugljika. Neki od tih ugljikovih lanaca spali vrlo dobro unutar motora. Ostali lanci ugljikovih ne detonirati u pravo vrijeme. Kucanje izvan vremena dovodi do gubitka vlasti i motor počinje "knock". Da biste spriječili plina udarac ispred vremena, neekspolzivan tvari dodaju na njega. Neki od tih tvari su isooctane tetraetil olovo, Pb (C MTBE (metil terc-butil eter) i etanola. Kvaliteta goriva za proizvodnju energije, bez pojave detonacije motora u unaprijed se mjerio zove oktana indeksa. Za ljestvici, isooctane je dodijeljen oktanskog broja 100, a n-heptanu se dodjeljuje vrijednost nula. Oktanskim brojem benzina je ekvivalent za brazilske benzina nalazi u Sjedinjenim Američkim Državama i Europi. Ona poštuje svjetske rang. * Provjerite vrijednosti ispod: Drugi frakcioniranje proizvod je dizelsko gorivo koje se koristi uglavnom u motorima koji zahtijevaju veliki moment pri malim brzinama, kao u slučaju dizelskih motora. U Brazilu, s obzirom na strukturu prerade, većina automobili napravljeni pomoću benzina kao gorivo. Kamioni, traktori, poljoprivredni strojevi, vlakovi, komunalne i stacionarni agregati su s dizelskim motorom. Njegova jedinstvena značajka je viskoznost, dok je, s ovom objektu je zajamčena podmazivanje. sintetske kemije