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" regular " unleaded , 87 octane
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∙ 14y ago
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Do cars burn pentane or octane?
Mostly octane.
What does octane mean?
Octane rating is the resistance to burning. For example (not real number) a gas with an octane rating of 50 will burn at 100 degrees Fahrenheit whereas a gas with an octane rating of 100 will burn at 200 degrees Fahrenheit. Higher the octane number the harder it is to burn.
Why is your 2004 grand prix burning so much gas?
burn high octane and keep it under 2000 rpm
Will copper lower gasoline octane?
Octane is a chemical in gasoline that causes it to burn well... copper won't do anything... octane is a natural gas... uh... what? no!
What is the difference in gas grades?
The grades gasoline are the different octane ratings, the cheapest gas has the least octane. The lower the octane in the gasoline, the faster it will burn. High performance cars need high octane fuel.
Why does hexadecane burn with a smokier flame than octane?
Hexadecane have more carbon atoms than octane . thus, it burns with a smokier flame than octane . hope it helps :)
What grade of gasoline required for 5.7 liter Chevy engine?
Stock engine can run on 85 to 89 octane without too much problem. A higher octane would be preffered if the engine is being used harder such as towing and or used in the mountains. Older engines can benefit from a higher octane as it will burn more freely to make up for the higher compression caused by the formation of carbon on top of the pistons
What types of gas do automobiles use?
Your average automobile will burn 87 octane unleaded gasoline. Some more sporty cars will burn 92 or 97 high octane unleaded fuels. All of which are a petroleum by product.
What would be the octane ratting for hydrogen in a internal combustion engine?
Pump gasoline is a blend of several hydrocarbons, obtained in the refining of crude oil. A few of these are nonane, heptane, butane, octane, etc. Pure octane is the slowest burning of those used and the least likely to "explode" or detonate in the engine when ignited. Detonation causes mechanical damage and lowers fuel economy. The octane rating of any pump grade of gasoline is comapared to pure octane. 87 octane fuel is lower than 93 octane and will burn faster (not good). 100 octane is equivalent to pure octane in burn rate. Pure octane would be too expensive to use, so a blend of several hydrocarbons is used for various reasons. Hydrogen, I would think might burn way too fast in an unmodified gas engine, but have never read about any studies on this.
What is the difference between 91 octane and 95 octane?
91 octane petrol will ignite at a lower temperature and burn faster, which can cause knocking in an auto engine. Lead compounds were added at one time to raise the octane rating, but recently engines have been redesigned to work on low (<98) octane petrol (or gas in the US colonies)
What weight of oxygen is required to completely burn 19.8 g of octane?
The chemical equation for complete burning of octane is: 2 C8H18 + 25 O2 -> 16 CO2 + 18 H2O. This equation shows that 25 moles of diatomic oxygen are required to completely burn each two moles of octane. The gram molecular mass of octane is 114.23 and the gram molecular mass of diatomic oxygen is 2(15.9994). Therefore, the ratio of the mass of oxygen required to completely burn any given mass of octane to the mass of the octane to be burned is 50(15.9994)/2(114.23) or 3.5016, to the justified number of significant digits (the same as the number of digits in the least precisely specified datum 114.23, and the mass of oxygen required to burn 19.8 g of octane is (3.5016)(19.8) or 69.3 grams to the justified number of significant digits, now limited by the less precisely specified datum 119.8.
How is petrol separated from crude oil?
By fractional distillation. It distils off as octane. However, octane is a straight chain alkane. So to make octane combust/burn more efficiently, octane is then 'reformed' into petrol .
