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Which compound is added to petrol to prevent engines from knocking?
Wiki User
∙ 14y ago
lead tetra-ethyl Pb(C2H5)4
Wiki User
∙ 14y ago
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Is petrol a element or compound?
Petrol is a compound.
WHAT IS THE CHEMICAL COMPOUND OF PETROL?
Petrol contain a huge number of organic compounds.
Is the 1995 Volkswagen transporter 2.5 petrol gearbox the same as 1999 petrol 2.5?
Simple answer is no. The way that diesel engines produce and use power is totally different to the way petrol engines produce power, the diesels power is at the bottom of the rev range as opposed to the petrol engines being at the top of the rev range. Becuse of this diesel engine gearboxes use very long gear ratios and petrol engine gearboxes use very short ratios. If you put a diesel engine onto a petrol gearbox the effect would be that in fifth gear at max revs you'll be travelling at 40mph.
Does petrol freeze?
Yes - all liquids can with the exception of Liquid Helium.
What is the function of lead in petrol?
Lead is no longer added to petrol because it added to both air pollution and general health risks. It used to be added for help in maintaining the general "health" of an engine's valves as well as reducing engine knocking.
Why tetraethyl lead is used in petrol?
To prevent knocking.
What property of petrol affects engine knock?
'Knocking' in petrol engines is caused by petrols low flashpoint - its high combustibility. The octane rating is too low for the compression.
Is petrol a element or compound?
Petrol is a compound.
What is the name of the compound that makes up the other gases in exhaust from petrol engines?
The majority is N2 since air is 78% of the other gasses in the exhaust from petrol engines. Hydrogen forms water H2O, which depending on the combustions of the engine.
What are the disadvantages of petrol engines?
petrol does not last forever
What is the main chemical compound present in petrol?
The compound "lead" is in petrol (gas).
How petrol engines function?
WHAT ARE THE BASIC PARTS OF PETROL ENGINE? HOW DOES PETROL ENGINE WORKS?
What is used to increase the anti-knocking property of petrol?
tetraethy lead
What is the symbol of glowplug on a petrol engine for?
it could be for the spark plug, petrol engines dont need glow plugs, diesel engines do
What is an unleded petrol?
Unleaded petrol is petrol that has not been treated with a lead compound.
Does unleaded petrol produce carbon monoxide?
Yes! Only difference is that the lead, used as a lubricant in earlier engines, has been removed and replaced with a synthetic compound.
What are the defferences between dessel and petrol engine?
Petrol & Gas engines are spark ignited engines where as diesel engines are compression ignited engines. Petrol engines works with explosion of fuel air mixture due to spark from spark plug inside the cylinder. Diesel engines works with combustion of fuel air mixture due to compression, compressed mixture attains a very high temperature which exceeds the flash point of diesel and starts burning inside the cylinder and the hot gases after burning of fuel misture exerts force on piston which makes the diesel engines work. Diesel engines are highly efficient than petrol engines.
