Ch 33: Energy From Fuels
About This Chapter
Energy From Fuels - Chapter Summary
The lessons in this chapter provide an overview of energy from fuels. You can review exothermic reactions and enthalpy. There are also discussions covering thermochemical equations and calorimetry. After completing the chapter, you should be prepared to:
- Provide examples of combustion reaction
- Explain what happens when endothermic reactions occur
- Discuss energy transfer in physical and chemical processes
- Calculate enthalpy change
- Recall details about Hess's Law
- Explain the ideal gas law and the gas constant
- Discuss calculations related to the combustion of fuels
- Perform heat calculations using a simple equation
Each lesson comes with a brief quiz to ascertain how much of the content you can recall. You can study all of the lessons in order or just focus on the topics you need to review. Another feature allows you to print the quiz in worksheet form and use it to study while away from your computer.
1. Combustion Reaction: Definition & Examples
Substances that release energy in the form of heat and light in the aftermath of a chemical reaction with oxygen are called combustion reactions. Learn about the definition, explanation, and real-world examples of combustion reactions.
2. Endothermic and Exothermic Reactions
In endothermic reactions, the system gains heat as the surroundings cool down, and in exothermic reactions, the system loses heat as the surroundings heat up. Explore the differences between these reactions and learn about chemical reactions and enthalpy.
3. Enthalpy: Energy Transfer in Physical and Chemical Processes
When energy is transferred during a chemical reaction, it is called enthalpy. Examine the changes that happen, the relationship to energy, heat, and temperature, exothermic and endothermic processes, and physical and chemical changes during enthalpy.
4. Enthalpy Change: Definition & Calculation
In this lesson, we will learn how much energy is in a reaction and what can drive that reaction forward. We will also learn how to calculate the efficiency of that reaction.
5. Using Hess's Law to Calculate the Change in Enthalpy of a Reaction
Enthalpy change of a multi-step chemical reaction is Hess's Law. Explore Hess's Law, thermochemical equations, how to manipulate thermochemical equations, how to use Hess's law to calculate the enthalpy change of a reaction, and how to calculate ΔH for the reaction.
6. Thermochemical Equations
In this lesson we will learn about thermochemical equations and how we use them to tell what happens to energy in equations and if the reaction is endothermic or exothermic.
7. The Ideal Gas Law and the Gas Constant
The ideal gas law can be used to predict real gas behavior. Learn about this law, including its equation, and understand how to use the equation to solve a gas problem. Explore the concepts used by the ideal gas law such as the gas constant.
8. Calorimetry: Measuring Heat Transfer and Heat Capacity
When a substance absorbs or gives out heat, the measurement of the heat transfer is calorimetry. Explore the meaning of calorimetry, the units of heat, specific heat capacity, and calorimetry and heat calculations.
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Other Chapters
Other chapters within the VCE Chemistry: Exam Prep & Study Guide course
- Steps of the Scientific Method
- Designing Scientific Experiments
- Procedures of Scientific Investigation
- Lab & Science Safety
- Drawing Conclusions & Communicating Scientific Ideas
- Atoms & Atomic Structure
- Understanding Elements & Periodicity
- Block & Group Elements
- Metals in Chemistry
- Ionic Compounds
- Quantifying Atoms
- Materials From Molecules
- Carbon Lattices & Nanomaterials
- Properties of Organic Compounds
- Polymer Basics
- Elements in the Universe
- Alchemy, Chemistry & the Periodic Table
- Lanthanoids & Actinoids
- Using Light to Solve Chemical Puzzles
- Properties of Glass
- Crude Oil & the Environment
- Surfactants
- Polymers, Composite Materials & Nanomaterials
- Properties of Water in Chemistry
- Acid-Base Reactions
- Redox Reactions
- Water Sample Analysis
- Measurement of Solubility & Concentration
- Analysis for Salts in Water
- Organic Compounds in Water
- Acids & Bases in Water
- Fuel Choices
- Fuel Cells & Galvanic Cells
- Rate & Extent of Chemical Changes
- Production of Chemicals by Electrolysis
- Analyzing Organic Compounds
- Key Food Molecules
- Metabolism in the Human Body
- VCE Chemistry Flashcards