About This Chapter
Who's it for?
Anyone who needs help learning or mastering college-level general chemistry material will benefit from taking this course. There is no faster or easier way to learn college-level general chemistry. Among those who would benefit are:
- Students who have fallen behind in understanding state functions or working with enthalpy
- Students who struggle with learning disabilities or learning differences, including autism and ADHD
- Students who prefer multiple ways of learning science (visual or auditory)
- Students who have missed class time and need to catch up
- Students who need an efficient way to learn about thermodynamics
- Students who struggle to understand their teachers
- Students who attend schools without extra science learning resources
How it works:
- Find videos in our course that cover what you need to learn or review.
- Press play and watch the video lesson.
- Refer to the video transcripts to reinforce your learning.
- Test your understanding of each lesson with short quizzes.
- Verify you're ready by completing the Thermodynamics chapter exam.
Why it works:
- Study Efficiently: Skip what you know; review what you don't.
- Retain What You Learn: Engaging animations and real-life examples make topics easy to grasp.
- Be Ready on Test Day: Use the Thermodynamics chapter exam to be prepared.
- Get Extra Support: Ask our subject-matter experts any thermodynamics question. They're here to help!
- Study With Flexibility: Watch videos on any web-ready device.
Students will review:
This chapter helps students review the concepts in a Thermodynamics unit of a standard college-level general chemistry course. Topics covered include:
- Using Hess's law to calculate the change in enthalpy of a reaction
- Measuring heat transfer and heat capacity
- Predicting the entropy of physical and chemical changes
- Predicting the spontaneity of a reaction
- The relationship between enthalpy, free energy and entropy
1. 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.
2. 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.
3. 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.
4. 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.
5. 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.
6. 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.
7. 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.
8. Electrochemistry: Free Energy and Cell Potential Energy
Our modern lives are totally dependent on electricity. In this lesson, we learn about electricity spontaneously produced by electrochemical cells or batteries. We make the link between the potential energy they produce and Gibbs free energy.
9. Energy Transformation: Definition, Types & Examples
In this lesson, you will learn about the different kinds of energy and how these types of energy can be transformed from one form to another. You will also learn about some uses of these energy transformations in everyday life.
10. Bond Enthalpy: Definition, Calculations & Values
When a chemical reaction occurs, chemical bonds are broken and formed. Energy is required to break bonds when a chemical reaction occurs, and this is called the bond enthalpy. In this lesson, we will discuss the bond enthalpy in chemical reactions.
11. Chemical Activity in Thermodynamics
Why do some chemical systems not behave ideally? Learn about chemical activity in this lesson, how to calculate it, and how intermolecular attractive forces between particles can affect it.
12. Activity Coefficient: Definition & Equation
Ionic solutions are not ideal solutions. The ionic strength of the solution changes the behavior of the ions in the solution. The activity coefficient is used to show how much the solution deviates from the ideal.
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Other chapters within the College Chemistry: Help and Review course
- Experimental Chemistry and Introduction to Matter: Help and Review
- Atoms: Help and Review
- The Periodic Table: Help and Review
- Nuclear Chemistry: Help and Review
- Chemical Bonding: Help and Review
- Liquids and Solids: Help and Review
- Gases: Help and Review
- Solutions: Help and Review
- Stoichiometry: Help and Review
- Chemical Reactions: Help and Review
- Equilibrium: Help and Review
- Kinetics: Help and Review
- Chirality in Organic Chemistry: Help & Review
- Stereochemistry: Help & Review