Ch 17: Thermodynamics in Chemistry

Watch thermodynamics video lessons and learn about the connection between heat and other types of energy. Take quizzes to make sure you understand the key thermodynamics concepts introduced here.

Thermodynamics in Chemistry - Chapter Summary and Learning Objectives

A branch of physical science, thermodynamics involves the study of heat in relationship to chemical, electrical, mechanical or other forms of energy. In this chapter, you'll learn about the two basic laws of thermodynamics, including how energy can't be created or destroyed. You'll also find out how to perform energy-related calculations and measurements. When you've finished the chapter, you should also be familiar with these additional key topics:

• State functions of molecules or compounds
• Thermodynamic quantities, including enthalpy and free energy
• Bond energy and chemical bond strength measurements
• Hess's Law of Constant Heat and how it pertains to enthalpy and state functions
• Calorimetry and how heat capacity and transfers are measured
• Electrochemistry and the relationship between chemistry and electrical occurrences

VideoObjective
The Laws of ThermodynamicsUnderstand chemical reactions; define the first and second laws of thermodynamics.
State Functions in ThermochemistryDefine and explain the importance of state function with examples.
Enthalpy: Energy Transfer in Physical and Chemical ProcessesIdentify how energy is transferred in a physical or chemical process; use thermochemical equations to calculate the amount of heat energy transferred in a reaction.
Bond Energy: Breaking the BondDefine and discuss bond energy.
Using Hess's Law to Calculate the Change in Enthalpy of a ReactionCompute changes in thermodynamic quantities during a chemical reaction.
Calorimetry: Measuring Heat Transfer and Heat CapacityUse temperature calculations and heat capacities to compute the amount of heat transferred.
Predicting the Entropy of Physical and Chemical ChangesDefine entropy and predict the deltaS sign for physical and chemical changes.
Free Energy: Predicting the Spontaneity of a ReactionForecast the unexpected occurrence of a chemical reaction.
Standard Enthalpy FormationIdentify formation reactions and enthalpic changes; compute the enthalpic change of a reaction.
The Relationship between Enthalpy (H), Free Energy (G) and Entropy (S) Calculate the deltaG, deltaS or deltaH at a given temperature using the other two values.
Electrochemistry: Free Energy and Cell Potential EnergyExplain the relationship between E cell and deltaG cell equilibrium constants.
Endothermic and Exothermic ReactionsDefine the terms and how they affect reactions.
Catalysts and Energy DynamicsUse a diagram to illustrate and explain the difference between a catalyst and an uncatalyzed reaction.

13 Lessons in Chapter 17: Thermodynamics in Chemistry
Test your knowledge with a 30-question chapter practice test
Chapter Practice Exam
Test your knowledge of this chapter with a 30 question practice chapter exam.
Not Taken
Practice Final Exam
Test your knowledge of the entire course with a 50 question practice final exam.
Not Taken

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