1 / 10

Hydrocarbons and Combustion

Hydrocarbons and Combustion. Organic Compounds. molecular substances that contain carbon atoms as basic building blocks. e.g. C 6 H 12 O 6 – sugar carbohydrates crude oil CH 4 – methane natural gas. Hydrocarbons.

ceri
Download Presentation

Hydrocarbons and Combustion

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Hydrocarbons and Combustion

  2. Organic Compounds molecular substances that contain carbon atoms as basic building blocks. e.g. C6H12O6 – sugar carbohydrates crude oil CH4 – methane natural gas

  3. Hydrocarbons Hydrocarbons are organic compounds of hydrogen and carbon in various combinations. 95% of all hydrocarbons are burned as fuels because the combustion reaction is exothermic (releases heat).

  4. Naming The naming of hydrocarbons follows a specific pattern: Recall that carbon has 4 valence electrons so it has the ability to combine with 4 other non-metals. The simplest hydrocarbon is methane. CH4 methane C2H6 ethane C3H8 propane C4H10 butane

  5. Naming Hydrocarbons with 5 or more carbons follow the same pattern and are named using the prefixes we are already used to:

  6. What does the chemical formula for hexane look like? CnH2n+2 C6H14

  7. Combustion In simplest terms, combustion is: fuel + oxygen  oxides + energy There are two types of combustion and it depends on the abundance of oxygen.

  8. Complete Combustion there is a good supply of oxygen and all the fuel is consumed. Clean reaction hydrocarbon + oxygen gas  carbon dioxide + water + energy

  9. Incomplete Combustion If there is a poor supply of oxygen The reaction is still exothermic but does not generate as much energy. ‘dirty reaction’ hydrocarbon + oxygen gas  carbon dioxide + carbon + carbon monoxide + water + energy

  10. Please Complete P251 #2, 3ab Worksheet

More Related