About This Chapter
OAE Chemistry: Thermodynamics - Chapter Summary
Revisit the laws of thermodynamics while you gear up for the OAE Chemistry exam. The instructors who lead these lessons offer step-by-step instructions for using the laws of thermodynamics, calculating changes in enthalpy of reactions, measuring heat transfer and more. You'll be prepared for questions on thermodynamics after you watch lessons on:
- Laws of thermodynamics
- State functions in thermochemistry
- Equations for bond energy
- Enthalpy and standard enthalpy of formation calculations
- Predictions on the spontaneity of a reaction
- Endothermic reactions and exothermic reactions
Studying thermodynamics in preparation for the OAE Chemistry exam is a simple process when you use the short and engaging videos in this chapter. Dynamic animations and graphics are used throughout the videos to make learning fun and to help you easily retain critical info for the exam. You'll also find lesson transcripts that simplify your review of key vocabulary words and concepts.
OAE Chemistry: Thermodynamics - Chapter Objectives
Your mastery of chemistry concepts and readiness to teach these topics to students are assessed on the OAE Chemistry exam, which is a requirement in Ohio's teacher licensing process for chemistry teachers. The exam breaks questions out into five domains and requires responses to 150 multiple-choice questions. Thermodynamics questions are part of the energy and chemical bonding domain where about 23% of the total questions on the exam are based.
Avoid last-minute stress about the format of the exam's questions by taking our self-assessment quizzes during your test preparations. These quizzes use the same format as the questions on the exam in addition to reinforcing your understanding of thermodynamics concepts.
1. 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.
2. 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.
3. State Functions in Thermochemistry
This lesson defines state functions and explains why state functions are so useful in thermochemistry and thermodynamics. You'll also see a few examples of common state functions.
4. Enthalpy: Energy Transfer in Physical and Chemical Processes
This video explores the relationship between chemistry and energy. We learn the general properties of energy and the concepts of temperature and heat. We will learn about energy flow and consider the enthalpy change during chemical reactions.
5. Bond Energy: Definition & Equation
Chemical reactions involve the breaking and forming of chemical bonds. In this video lesson, we will learn about bond energy and how we can use it to measure the overall energy change of a chemical reaction.
6. Using Hess's Law to Calculate the Change in Enthalpy of a Reaction
Want to make sure you don't blow yourself up during a chemical reaction? This lesson will help you avoid this by teaching you Hess's Law. This is one way to calculate the heat transferred, or enthalpy change, of a chemical reaction.
7. Standard Enthalpy of Formation: Explanation & Calculations
In this video lesson, we learn about the standard enthalpies of formation of substances. We will also learn how we can use these values as one way to calculate the standard enthalpy change of a chemical reaction.
8. Predicting the Entropy of Physical and Chemical Changes
Ever wonder why your bedroom always ends up a mess within hours of you tidying up? That is the magic of entropy. In this lesson, you'll learn why disorder is the natural state of matter and how we can predict entropy change in a physical or chemical reaction.
9. Free Energy: Predicting the Spontaneity of a Reaction
Ever heard the phrase 'pushing Jell-O uphill on a hot day'? This describes a hopeless task. In this lesson, we will predict hopeful and hopeless reactions. Or put scientifically, predicting spontaneous (hopeful) and non-spontaneous (hopeless) reactions.
10. Calorimetry: Measuring Heat Transfer and Heat Capacity
This video lesson explains the technique of calorimetry used to measure heat transfer in chemical reactions. You will see how different materials have different specific heat capacities. You will learn how to carry out heat calculations using a simple equation.
11. The Relationship Between Enthalpy (H), Free Energy (G) and Entropy (S)
In this video lesson, we'll study free energy (G) and its relationship to enthalpy, entropy and temperature. You'll also learn why free energy (G) is the single most useful criterion for predicting the spontaneity and direction of a chemical reaction.
12. 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.
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Other chapters within the Ohio Assessments for Educators - Chemistry (009): Practice & Study Guide course
- OAE Chemistry: Scientific Principles
- OAE Chemistry: Interdisciplinary Relationships in Science
- OAE Chemistry: Properties of Matter
- OAE Chemistry: Atomic Theory & the Periodic Table
- OAE Chemistry: Chemical Bonds
- OAE Chemistry: Intermolecular Forces
- OAE Chemistry: Liquids & Solids
- OAE Chemistry: Gases
- OAE Chemistry: Solutions & Solubility
- OAE Chemistry: Chemical Reactions & Kinetics
- OAE Chemistry: Chemical Equilibrium
- OAE Chemistry: Acids & Bases
- OAE Chemistry: Inorganic & Organic Compounds
- OAE Chemistry: Redox Reactions & Electrochemistry
- Ohio Assessments for Educators Chemistry Flashcards