On the basis of these data we can conclude that the gasoline is more pollutant than alcohol and that how much bigger the more pollutant amount of hydro-carbons is the composition. ANALYSIS OF THE TEXT? PART II the combustion of hydro-carbons produces, mainly, water (H2O) and carbon dioxide (CO2). However, as the conditions, it can produce soot (c) or carbon monoxide (CO). When it has enough oxygen in the reaction of combustion of the hydro-carbons, the reaction goes to produce dioxide of carbon (CO2) and water (H2O), in this in case that we have a complete combustion. In the incomplete combustion of hydro-carbons, they are produced, beyond the water (H2O), carbon monoxide (CO), the carbon (c), also soot call.
The end items depend on the amount of oxygen (O2) that they participate of the reaction. The carbon monoxide is a by-product of the incomplete combustion. The transport is about a colorless and odourless gas, that possesss the chemical property to agree with the hemoglobina gifts in red globules in the blood, harming of oxygen for the cells of the body. This happens because the hemoglobina, that would have to be agreed with the oxygen to carry it to the cells from the body, is engaged with the carbon monoxide. Beyond provoking illnesses as rinite, bronchitis, pneumonia and asthma, in high concentrations this contamination can until killing. How to explain the soot and the monoxide of carbon (CO)? When lack of oxygen in the engine of the car occurs, occurs what we call incomplete combustion; taking the example of the gasoline, it observes: With little O2: C8H18 + 17/2 O2 to 8CO + 9H2O With lack of O2: C8H18 + 9/2O2 to 8C + 9H2O Note that the CO has an oxygen unless the CO, what characterizes the oxygen deficiency, or the inefficiency of the reaction. This gas is very toxic it human being, therefore this makes it difficult the function of the hemoglobina, that is responsible for the renewal of the oxygen in our blood.