Introduction to Fuels
Fossil Fuels: Sources and Impacts
- The definition of a fuel
- The difference between energy and fuel
- Issues facing our society with reference to fuels
What are the advantages and disadvantages of biofuel?
Exothermic Reactions, Energy Transformations and Enthalpy
In this lesson on Exothermic Reactions, Energy Transformations and Enthalpy, you will learn about:
- combustion of fuels as exothermic reactions with reference to the use of the joule as the SI unit of energy, energy transformations and their efficiencies and measurement of enthalpy change including symbol (∆H) and common units kJ mol-1, kJ g-1, MJ/tonne)
- the writing of balanced thermochemical equations, including states, for the complete and incomplete combustion of hydrocarbons, methanol and ethanol, using experimental data and data tables
- the use of specific heat capacity of water to determine the approximate amount of heat energy released in the combustion of a fuel.
Exothermic, Endothermic Reactions and Enthalpy
Gas Pressure and Standard Laboratory Conditions
In this lesson on Gas Pressure and Standard Laboratory Conditions, you will learn about:
- the definition of gas pressure including units, the universal gas equation and standard laboratory conditions (SLC) at 25 °C and 100 kPa
What are Standard Conditions?
Stoichiometric Calculations Involving Gases and Enthalpy Changes
In this lesson on Stoichiometric Calculations Involving Gases and Enthalpy Changes, you will learn about:
- calculations related to the combustion of fuels including use of mass-mass, mass-volume and volume-volume stoichiometry in calculations of enthalpy change to determine heat energy released, reactant and product amounts and net volume of greenhouse gases at a given temperature and pressure released per MJ of energy obtained.
How to Conduct Stoichiometric Calculations Involving Gases
In this lesson on Fuel Choices, you’ll learn about:
- Fossil fuels
- The environmental impact of fossil fuels
What are the different types of fossil fuels?
How is the environment impacts by fossil fuels?
What are biofuels?
Reduction and Oxidation Reactions
What is a Reduction and Oxidation (Redox) Reaction?
How Can We Write Out Redox Reactions?
This post will take you through an introduction of galvanic cells for VCE Chemistry.
You will discover their purpose as primary cells and as portable or fixed chemical energy storage devices that can produce electricity (details of specific cells not required) including common design features (anode, cathode, electrolytes, salt bridge and separation of half-cells) and chemical processes (electron and ion flows, half-equations and overall equations).
Check out the video below to learn more about how they work:
This video offers an animated video os a copper-zinc battery.
An example of this is a fuel cell.
This video is another explanation on galvanic cells that students may find useful.
Standard Reduction Potentials
Galvanic Cells and Standard Reduction Potentials
In this post you will learn about fuel cells and:
- the common design features including use of porous electrodes for gaseous reactants to increase cell efficiency (details of specific cells not required)
- the comparison of the use and combustion of fuels to supply energy with reference to their energy efficiencies (qualitative), safety, fuel supply (including the storage of hydrogen), production of greenhouse gases and applications
- the comparison of fuel cells and galvanic cells with reference to their definitions, functions, design features, energy transformations, energy efficiencies (qualitative) and applications.
Introduction to Fuel Cells
The following video goes in more depth and includes VCE exam questions.