Chemistry 30

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Thermodynamics: Unit Index | Practice Problems | Assignments | Student Lab | Research Ideas | Teacher Resources

 

Kinetics: Unit Index | Practice Problems | Assignments | Student Lab | Research Ideas | Teacher Resources
Equilibrium: Unit Index | Practice Problems | Assignments | Student Lab | Research Ideas | Teacher Resources
Solutions: Unit Index | Practice Problems | Assignments | Student Lab | Research Ideas | Teacher Resources
Acids & Bases: Module Index | Practice Problems | Assignments | Student Lab | Research Ideas | Teacher Resources
Redox Reactions: Module Index | Practice Problems | Assignments | Student Lab | Research Ideas | Teacher Resources

 

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Thermodynamics

Foundational Objectives

Source: SaskLearning Evergreen Curriculum, Chemistry 30

OBJECTIVES CONTENT

Examine the relationships between heat energy and reactions.

Lesson 1 in general
  • Recognize that energy changes are associated with chemical reactions.
 
  • Relate enthalpy change in a reaction to bond energy and stability.
Lesson 2.7
  • Differentiate between endothermic and exothermic reactions.
Demonstration - Endothermic and exothermic reactions
  • Compare the energy changes in phases changes and chemical reactions.
 
  • Explain the difference between heat and temperature.
 
  • Identify reactions which are used to produce useful heat.
Research - Hot and Cold Packs
  • Consider the environmental and social effects of the use of heat energy by our society.
Research

Understand the quantitative description of enthalpy change.

Lesson 2
  • Measure some energy changes in chemical reactions.
Calorimetry labs
  • Investigate how tables of standard heats (enthalpies) of formation are created and used.
 
  • Express the enthalpy change of a chemical reactions as a term in the equation for the reaction, or as a heat of reaction (ΔH).
Lesson 2.1; Calorimetry labs
  • Use tables, graphs, or diagrams and an application of Hess's Law to infer enthalpy changes in reactions.
 

Understand the reasons why entropy and enthalpy effects are important.

Lesson 3
  • Identify how entropy effects influence chemical reactions.
Lesson 3.1
  • Consider the interaction between enthalpy and entropy in determining whether a reaction is spontaneous.
Lesson 3.2
  • Use the concept of free energy to express the quantitative relationship between entropy and enthalpy.
Lesson 3.3
  • Predict spontaneity of reactions using Gibbs Free Energy Equation
Lesson 3.3

Understand and use the vocabulary, structures and forms of expression which characterize chemistry. (COM)

Lessons 1, 2, 3
  • Incorporate vocabulary such as bond energy, enthalpy, endothermic and standard heat of formation into their speaking and writing about energies of reactions.
Lesson 2
  • Use tables and graphs in interpreting, estimating and explaining the energy effects of chemical reactions.
Lesson 2
  • Relate the theoretical aspects of the study of energies of reactions to daily, practical experiences with energy produced by and consumed by reactions.
 

Strengthen understanding of chemistry through applying knowledge of numbers and their interrelationships. (NUM)

 
  • Read, and interpret meaning from, graphs, charts and tables.
 
  • Collect, organize and analyze quantitative information.
Labs - Temperature Changes during Change of State; Calorimetry; Hess's Law
  • Use graphs, charts and tables to help explain concepts and ideas about energy changes.
Lesson 2
  • Understand and explain to others (orally or in writing) how temperature change measurements can be used to infer the extent and type of bond rearrangements during a reaction.
Lab - Temperature changes during Change of State

Develop an understanding of how knowledge is created, evaluated, refined and changed within chemistry. (CCT)

 
  • Make careful observations of energy effects in reactions, and explain how those effects can be used to make inferences about the atomic and molecular rearrangements.
Lab - Temperature changes during Change of State
  • Reflect on the importance of theory in creating a framework by which reactions are viewed, and the place of theory with respect to the observations.
 

Appreciate the value and limitations of technology within society. (TL)

 
  • Explore the distribution and uses in home, school and community of technologies making use of the exothermic or endothermic nature of chemical reactions.
Research Project
  • Assess the benefits and risks accruing from technologies which exploit the exothermic or endothermic nature of chemical reactions.
 
  • Use technological devices to help measure heats of reaction.
Labs - Calometry; Hess's Law

 

Credits | Central iSchool | Sask Learning | Saskatchewan Evergreen Curriculum | Updated: 22-May-2006