1 / 7

Fuels and Climate Science: Boiling Points, Combustion, and Atmospheric Changes

This paper covers topics related to fuels and climate science, including the boiling points of fuel fractions, complete and incomplete combustion, the correlation between atmospheric carbon dioxide and fossil fuel use, the formation of oceans and their impact on carbon dioxide levels, the history of oxygen levels in the atmosphere, the greenhouse effect, and the reactivity of elements in the periodic table.

jacksonk
Download Presentation

Fuels and Climate Science: Boiling Points, Combustion, and Atmospheric Changes

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. Paper 1 Topic 8: Fuels Label this diagram and explain how it works. Explain why the boiling points of the fractions are important. Give a use for each fraction What is acid rain and how is it formed? What is climate change and how does it happen? What is the difference between complete and incomplete combustion. • Balancing Equations • Write a balanced equation for the complete combustion of methane • Write a balanced equation for the complete combustion of propane • Write a word equation for the incomplete combustion of methane Keywords: complete, incomplete, oxygen, carbon monoxide, Fossil fuel, crude oil, boiling point, viscosity, ignition, fractions

  2. Paper 1 Topic 8 Fuels Fill in the table below Name this molecule Draw a molecule of butane: What are Hydrocarbons? What is a homologous series? What are alkanes? What are alkenes? Why do we need to crack molecules of hydrocarbons? Finish the equation for cracking C8H18 C2H4 + Explain how hydrocarbons in different fractions differ from each other in terms of • the number of carbon and hydrogen atoms in their molecules. • boiling points - ease of ignition • Viscosity What are the advantages and disadvantages of using hydrogen, rather than petrol, as a fuel in cars Keywords: hydrogen, carbon, single bond, double bond, saturated, unsaturated, cracking, alkane, alkene, viscosity

  3. Paper 2 Topic 9: Earth and Atmospheric Science Carbon Dioxide and Climate Change Is there a correlation between the change in atmospheric carbon dioxide and our use of fossil fuels? Explain What causes uncertainties in the data we use to look at this correlation? Global Warming The level of greenhouse gases in the atmosphere has gradually increased as a result of: 1. 2. 3. 4. Composition of the Atmosphere Draw or write the composition of the Atmosphere has changed from the formation of the Earth to now: Oceans and Carbon dioxide Explain how oceans formed and how this changed the amount of carbon dioxide in the atmosphere: Oxygen in the Atmosphere The levels of oxygen in the atmosphere have changed throughout the history of the Earth. Below briefly explain how: Explain what the greenhouse effect is and what causes it. Describe the chemical test for oxygen Keywords: Carbon dioxide, Global Warming, Fossil Fuels, deforestation, Oceans, Water Vapour, Photosynthesis

  4. Paper 2 Topic - Groups in the Periodic Table Halogens Draw the electronic structure of Fluorine, Chlorine and Bromine. Use this to explain how the reactivity changes as you go down the group. What do all the elements in Group 1 have in common? What do all the elements in Group 7 have in common? Alkali Metals Draw the electronic structure of Lithium, sodium and potassium. Use this to explain how the reactivity changes as you go down the group • Write word and symbol equations for the reaction of the alkali metals with water • Lithium • Sodium • Potassium • How could you test for the products formed? Keywords: outer electron, nuclear attraction, electrons, nucleus, reactivity

  5. Paper 2 Topic - Groups in the Periodic Table Noble gases What are the noble gases and what can they be used for? • Displacement Reactions of the Halogens • Write word and balanced symbol equations for the displacement reactions of the halogens. How does this show you which is the most reactive? • Potassium bromide + chlorine  • Potassium iodide + chloride  ? Group 1 How does reactivity change as you go down the group? Explain this. Group 7 How does reactivity change as you go down the group? Explain this.

  6. Paper 2 Topic Rates of Reaction Rates of Reaction. Using the particle model explain how the following affect the rate of reaction using diagrams. Concentration Surface Area Temperature Catalyst What happens to the temperature in Endothermic reaction? Exothermic reaction? Energy Diagrams – Draw on energy diagrams to represent, explain using bond breaking and formation EXOTHERMIC ENDOTHERMIC Keywords: temperature, bond breaking, bond making What is a catalyst and what can they be used for?

  7. Balancing Equations Can you balance Na (s) + H2O(l)  NaOH(aq) +H2(g) CH4(g) + O2(g)  H2O(l) + CO2(g) Cu(s) + O2(g)  CuO(s) CuO(s) + C(s)  Cu(s) + CO2(g)

More Related