# Ch 17: Thermal Physics & Thermodynamics

Watch video lessons on thermal physics and thermodynamics to learn how heat and energy can affect matter. Each lesson is accompanied by a short multiple-choice quiz you can use to check your understanding of these science topics.

## Thermal Physics and Thermodynamics - Chapter Summary and Learning Objectives

Thermal physics is the study of heat science, including the three main areas of kinetic theory, statistical mechanics and thermodynamics. At the beginning of the lesson, the instructor will review numerical or temperature measurements of hot and cold. You'll also learn about phase changes, such as when a solid melts or evaporates, and see how a heating curve can show what happens during a chemical transition.

In the latter half of the lesson, the focus will be on the laws of thermodynamics, or how energy can change, but never be created or destroyed. The instructor will also discuss the relationship between gas laws and kinetic molecular theory. When you have finished watching the videos, you should be able to:

• Explain what happens during heat transfer
• Use scientific measurements to calculate heat transfer
• Determine and analyze how changes in size and thickness of an object affect the flow of heat
• Explain the properties and movements of gas particles using kinetic molecular theory
• Use the ideal gas law to calculate the amount, pressure or temperature of a gas
• Define and discuss the laws of thermodynamics and the Carnot cycle

VideoObjective
Introduction to Thermal PhysicsProvide a summary of thermal physics.
Temperature Scales: Fahrenheit and CelsiusReview temperature scales.
Phase Changes and Heating CurvesDescribe what happens during a phase change, and interpret a heating curve.
The Relationship Between Heat and TemperatureDiscuss the relationship between heat and temperature.
Calorimetry: Measuring Heat Transfer and Heat CapacityUse heat capacities and temperature measurements to calculate the amount of heat transferred.
Heat Transfer and Phase ChangesDiscuss heat transfer during phase changes.
Thermal ExpansionCalculate how changes in thickness and area affect the flow of heat through a slab of material and the temperature difference between the two faces of the slab. Analyze the changes in an object's size and shape when it is heated. Assess the effects of conduction, convection and radiation in thermal processes.
The Kinetic Molecular Theory: Properties of GasesShow how the kinetic molecular theory can explain the movement of particles and properties of gases.
The Ideal Gas Law and the Gas ConstantUse the kinetic molecular theory to explain the relationships among gas volume, temperature, and pressure. Discuss the Gas Constant and its units.
Using the Ideal Gas Law: Calculate Pressure, Volume, Temperature or Quantity of a GasReconfigure the ideal gas law to calculate the pressure, volume, temperature or quantity of a gas when the other three variables are known.
The Zeroth Law of ThermodynamicsDiscuss the Zeroth Law of Thermodynamics and its consequences.
First Law of Thermodynamics: Law of Conservation of EnergyDescribe the Law of Conservation of Energy and its application to all energy types.
Second Law of Thermodynamics: Entropy and SystemsDefine entropy, and develop examples of how the entropy of a system increases over time.
The Carnot CycleExplain the Carnot cycle.

Final Exam
Chapter Exam

### Earning College Credit

Did you know… We have over 95 college courses that prepare you to earn credit by exam that is accepted by over 2,000 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.