About This Chapter
TExES Chemistry: Energy & Thermodynamics - Chapter Summary
The lessons contained in this chapter are designed to illustrate and provide detailed explanations of energy characteristics and the laws of thermodynamics. Study them so you can better answer questions on the TExES Chemistry 7-12 exam. You will learn about chemical reactions and changes in relation to energy and examples of thermodynamics. In doing so, you should have the ability to demonstrate the following:
- Defining energy
- Identifying energy types and sources
- Describing how a substance changes from one state to another
- Comparing exothermic and endothermic reactions
- Calculating thermal expansion
- Providing details about the laws of thermodynamics
- Detailing the process involved in the Carnot Cycle
- Relating what Gibbs free energy is
By presenting the material in an engaging manner, these video lessons make learning or reviewing these topics fun and easy. You'll get an idea of the format used on the actual TExES Chemistry exam and test your mastery of what you've learned from the videos by taking the accompanying quizzes.
TExES Chemistry: Energy & Thermodynamics Objectives
The Energy and Thermodynamics chapter will help you understand complex chemical reactions and energy processes. You will find questions pertaining to these topics in the second domain (Matter and Energy) of the TExES Chemistry 7-12 exam, which makes up 41% of the entire test. A minimum score of 240 is required to pass this exam.
Texas uses the TExES exams to assess an entry-level teacher's comprehension of material within specific content areas. The results are used to help teachers gain certification in the field. Exams are given in core subjects in addition to more specific areas, ranging from art to technology as well as educational administration and counseling.
1. What is Energy? - Definition and Significance in Nature
This lesson describes the nature of energy and how it is transferred from one source into another. Additionally, it will describe the significance of energy in natural systems.
2. Phase Changes and Heating Curves
Learn the phases - gas, liquid, solid and plasma. Learn what a phase diagram is and what terms describe the movement between phases: melting, sublimating, freezing, vaporization, condensation, and deposition. Discover why heating curves have plateaus, what a phase transition is, and what happens during this transition.
3. Endothermic and Exothermic Reactions
Explore a chemical reaction at the molecular level. Learn about exothermic and endothermic reactions, what they look like and what happens when they occur. Understand enthalpy and how you can use it to predict whether a reaction will be exothermic or endothermic.
4. Thermal Expansion: Definition, Equation & Examples
In this lesson, you will learn what thermal expansion is and discover an equation for calculating how much different materials expand. You'll look at a number of examples of thermal expansion. A short quiz will follow.
5. The Zeroth Law of Thermodynamics
After watching this video, you will be able to state the zeroth law of thermodynamics, what it means, and why it is important. A short quiz will follow.
6. The Laws of Thermodynamics
Learn about the first and second laws of thermodynamics. Find out how energy is generated, how it converts from one form to another, and what happens to energy in a closed system.
7. Efficiency & the Carnot Cycle: Equations & Examples
After watching this video, you will be able to explain the Carnot Cycle, including what it represents and how it works, and calculate the efficiency of a particular Carnot engine. A short quiz will follow.
8. Gibbs Free Energy: Definition & Significance
Have you ever wondered why some things just happen spontaneously? Have you ever asked yourself why salt dissolves in water? In this lesson, you will understand the meaning of the Gibbs free energy and how it helps us predict if a chemical reaction will happen spontaneously.
Earning College Credit
Did you know… We have over 200 college courses that prepare you to earn credit by exam that is accepted by over 1,500 colleges and universities. You can test out of the first two years of college and save thousands off your degree. Anyone can earn credit-by-exam regardless of age or education level.
To learn more, visit our Earning Credit Page
Transferring credit to the school of your choice
Not sure what college you want to attend yet? Study.com has thousands of articles about every imaginable degree, area of study and career path that can help you find the school that's right for you.
Other chapters within the TExES Chemistry 7-12 (240): Practice & Study Guide course
- TExES Chemistry: Equipment, Safety & Measurements
- TExES Chemistry: Scientific Inquiry & Processes
- TExES Chemistry: Matter
- TExES Chemistry: Atomic Structure & Characteristics
- TExES Chemistry: Properties of Gases
- TExES Chemistry: Properties of Ionic & Covalent Bonds
- TExES Chemistry: Chemical Notation & Equations
- TExES Chemistry: Types & Proprieties of Solutions
- TExES Chemistry: Chemical Kinetics
- TExES Chemistry: Acids, Bases & Chemical Reactions
- TExES Chemistry: Equilibrium
- TExES Chemistry: Nuclear Chemistry
- TExES Chemistry: Teaching & Assessing Scientific Inquiry
- TExES Chemistry 7-12 Flashcards