how is carbon monoxide formed in the engine?

Question

please give me equations of chemical reaction. thanks. and what type of reagent is the water molecule in this reaction.
HBr +H2O > H3O* +Br-

Answer 1

incomplete combustion in the engine results in carbon monoxide. you would expect only carbon dioxide and water to form from burning fuel, but a lack of oxygen results in some carbon monoxide forming.

HBr dissociates in water to form the bromide ion and the hydronium ion, H3O+, which is what makes the solution acidic. hydrobromic acid is a very strong acid. the ionisation of HBr is not a reaction, so water is not a reagent per se. the equation is equivalent to:

HBr(aq)--> H+(aq) + Br-(aq)

(aq) stands for aqueous, or, the presence of water molecules.

Answer 2

How Is Carbon Monoxide Produced

Answer 3

How Is Carbon Monoxide Formed

Answer 4

Carbon monoxide and carbon deposits form very practically continually as a results of fact the oxygen content textile is extra limited in a motor vehicle engine than in the exterior. loss of oxygen consequences in the formation of carbon monoxide.

Answer 5

Incomplete burning of a fuel in an engine will cause the formation of carbon monoxide. Incomplete burning will happen when you have not enough oxygen to make a complete combustion. Complete combustion will give you carbon dioxide and water.

Assume your fuel is C9H19.
The complete burning reaction will be:

C9H20 + 14O2 ---> 9CO2 + 10H2O

The incomplete burning reaction could be:

C9H20 + 9.5O2 ----> 9CO + 10H2O

From the reactions, you can see that the first one (the complete) required 14 moles of oxygen per mole of fuel. The second one requires 9.5 moles of oxygen. So if you have less than 14:1 oxygen/fuel ratio, you will start producing some CO.

With the second question, H2O is acting as a proton receptor so it should be consider as a base. [But this is a very stupid question to ask in my opinion]

Answer 6

"Producer gas" is formed by combustion of carbon in oxygen at high temperatures when there is an excess of carbon. In an oven, air is passed through a bed of coke. The initially produced CO2 equilibrates with the remaining hot carbon to give CO. The reaction of CO2 with carbon to give CO is described as the Boudouard equilibrium. Above 800 °C, CO is the predominant product.

O2 + 2 C → 2 CO ΔH = -221 kJ/mol

"Synthesis gas" is produced via the endothermic reaction of steam and carbon:

H2O + C → H2 + CO ΔH = 131 kJ/mol

CO also is a byproduct of the reduction of metal oxide ores with carbon, shown is simplified form as follows:

MO + C → M + CO ΔH = 131 kJ/mol

Since CO is a gas, the reduction process can be driven by heating, exploiting the positive (favorable) entropy of reaction. The Ellingham diagram shows that CO formation is favoured over CO2 in high temperatures.

Answer 7

Carbon monoxide, chemical compound of carbon and oxygen with the formula, CO, is a colorless, odorless gas, about 3 percent lighter than air. It is poisonous to all warm-blooded animals and to many other forms of life. When inhaled CO combines with hemoglobin in the blood, preventing absorption of oxygen and resulting in asphyxiation.

Carbon monoxide is formed whenever carbon or substances containing carbon are burned with an insufficient air supply. Even when the amount of air is theoretically sufficient, the reaction is not always complete, so that the combustion gases contain some free oxygen and some carbon monoxide.

An incomplete reaction is especially probable when it takes place quickly, as in an automobile engine. For this reason, automobile-exhaust gases contain harmful quantities of carbon monoxide, sometimes several percent, although antipollution devices are intended to keep the level below 1 percent.

As little as 1/1000 of 1 percent of carbon monoxide in air may produce symptoms of poisoning, and as little as 1/5 of 1 percent may prove fatal in less than 30 minutes.

Carbon monoxide is a major ingredient of the air pollution in urban areas. Because it is odorless, carbon monoxide is an insidious poison.

It produces only mild symptoms of headache, nausea, or fatigue, followed by unconsciousness. An automobile engine running in a closed garage can make the air noxious within a few minutes; a leaking furnace flue may fill a house with unsuspected poison.

Fuel gas, which may contain as much as 50 percent carbon monoxide, often has small quantities of unpleasant-smelling sulfur compounds purposely added to make leaks noticeable.

Carbon monoxide is an important industrial fuel because it contains more than two-thirds of the heating value of the carbon from which it was formed.

It is a constituent of water gas, producer gas, blast furnace gas, and coal gas.

In smelting, iron ore carbon monoxide formed from coke used in the process acts as a reducing agent, that is, it removes oxygen from the ore.

Carbon monoxide combines actively with chlorine to form carbonyl chloride, or phosgene, and it combines with hydrogen, when heated in the presence of a catalyst, to form methyl alcohol.

The direct combination of carbon monoxide with certain metals, forming gaseous compounds, is used in refining those metals, particularly nickel.

Carbon monoxide melts at -205

° C (-337° F) and boils at -191.5° C (-312.7°F).

Answer 8

1) CO is a product of incomplete combustion.
With excess oxygen present, the gasoline (a hydrocarbon) in the engine is burned completely to carbon dioxide and water.....eg, >CH2CH2<+3O2-->2CO2+2H2O
But if not enough O2 is present, some of the intermediate CO cannot be completely oxidized......eg, >CH2CH2<+2.5 O2--->CO+CO2+2H2O

2) Water is not a reactant in the HBr question...it merely acts as a 'carrier' for H+ forming the hydronium ion H3O+