The Enthalpy of Phase Changes

By Alberta Advanced Education - 1996

Duplicates Joule's experiment to show how he determined specific heat capacity of water. Explains the heat released by one substance equals the heat…

By Alberta Advanced Education - 1996

Shows how the energy content of food can be determined using calorimetry. Defines specific heat capacity and heat capacity. Students design and…

By Alberta Advanced Education - 1996

Graphs are generated to illustrate kinetic and potential energy changes to states of matter. Molecular animation further illustrates this concept…

By Alberta Advanced Education - 1996

Explains how energy released by one substance equals energy absorbed by another. Calorimetry experiments show the amount of energy transferred when…

By Alberta Advanced Education - 1996

Explains enthalpy changes in terms of rearrangement of chemical bonds and examines how to graphically determine enthalpy change for a reaction using…

By Alberta Advanced Education - 1996

Shows how enthalpy changes can be communicated: as a term in an equation; as a delta H or molar delta H notation; and as a potential energy diagram…

By Alberta Advanced Education - 1996

Determines the molar enthalpy of neutralization of sodium hydroxide using calorimetry. The experimental value is then compared to the actual value…

By Alberta Advanced Education - 1996

Illustrates multi-step energetics problems with various real-life situations. Stresses the steps that should be applied in problem solving: identify…

By Alberta Advanced Education - 1996

Photosynthesis and cellular respiration are examples of potential energy changes calculated using Hess's Law. The molar enthalpy of combustion of…

By Alberta Advanced Education - 1996

This program focuses on energy efficiency. Students compare the efficiency of different water heater designs using controlled and responding…

By Alberta Advanced Education - 1996

Compares the energy of a phase change, chemical change and nuclear change. Explains the conversion of mass to energy using Einstein's equation, E…

By Alberta Advanced Education - 1996

Our reliance on fossil fuels is the basis for a risk/benefit analysis of energy sources. The advantages and disadvantages of fossil fuels are…

By Alberta Advanced Education - 1996

Provides a historical perspective of oxidation and reduction using examples of reactions. Introduces the terms oxidation and reduction, and…

By Alberta Advanced Education - 1996

Explains the terms spontaneous and non-spontaneous, shows the strength of oxidizing and reducing agents, and develops a reduction half-reaction…

By Alberta Advanced Education - 1996

Performs experiments to: identify the chemical responsible; compare relative strengths on non-metallic oxidizing agents; develop a reduction…

By Alberta Advanced Education - 1996

Focuses on early electronics. Students perform a lab demonstration to make a printed circuit board. Introduces and reviews the five-step method for…

By Alberta Advanced Education - 1996

Explains why corrosion is a major concern of industry and consumers. Shows various everyday examples of corrosion reactions and how they can be…

By Alberta Advanced Education - 1996

Emphasizes the usefulness of redox titration as an analytical technique. Examines titration procedures and techniques and explains how to determine…

By Alberta Advanced Education - 1996

Shows the complete cycle of a redox titration. Analysis of the data covers: predicting the endpoint colour change; standardizing the titrant…

By Alberta Advanced Education - 1996

Detailed graphics explain oxidation numbers within molecules and complex ions. Examples show the rules for assigning oxidation numbers and for…

By Alberta Advanced Education - 1996

Generates oxidation and reduction half-reactions using oxidation numbers and rules from the previous program. Electrons are balanced and the two…

By Alberta Advanced Education - 1996

Explains how electrical energy is harnessed from redox reactions. Studies simple voltaic cells and explains their function. Discusses commercial…

By Alberta Advanced Education - 1996

Discusses reasons for a standard half-cell potential and explains the electric potentials on the reduction half-reaction table. This table is used…

By Alberta Advanced Education - 1996

Examining commercial primary cells show: electrolyte composition; oxidation and reduction half-reactions; and anode and cathode. Experiments on…

By Alberta Advanced Education - 1996

Explores the similarities and differences of voltaic and electrolytic cells. The same steps to predict voltaic cell reactions can be used to predict…

By Alberta Advanced Education - 1996

Secondary cells are defined and compared to primary cells. Equations that show the rechargeable aspect of secondary cells are explained using a lead…

By Alberta Advanced Education - 1996

Explains how metals are obtained from molten ores and presents a historical perspective of Sir Humphrey Davy's work. Explores similar technology…

By Alberta Advanced Education - 1996

Discusses Michael Faraday's contributions to science. Explains electrical units and the Faraday, and the relationship between current, time and mol…

By Alberta Advanced Education - 1996

Compares the costs of recycling to that of producing aluminum and iron from their ores. Students look at the economic and environmental advantages…

By Alberta Advanced Education - 1996

Explains several reversible reactions and a juggler demonstrates the differences between steady state, open and closed systems. Experiments using…

By Alberta Advanced Education - 1996

Demonstrates how change in temperature can favour either a forward or reverse rate of a reaction. On a molecular level, the hydrogen iodine…

By Alberta Advanced Education - 1996

The synthesis of ammonia shows how to determine the product and reactant present at equilibrium. The equilibrium law expression is explained, and…

By Alberta Advanced Education - 1996

Explains Le Châtelier's principle and shows how his work is used to identify factors that can affect equilibrium concentrations. Demonstrates how…

By Alberta Advanced Education - 1996

The two reactions involved in the production of methanol form the basis for a review of the factors which favour methanol production. Provides an…

By Alberta Advanced Education - 1996

Empirical definitions of acidic, basic and neutral solutions are derived by performing diagnostic tests. Students examine real-life applications of…

By Alberta Advanced Education - 1996

Studies evidence for the shifting of equilibrium in pure water when acids or bases are added. Examines the inverse relationship between hydrogen and…

By Alberta Advanced Education - 1996

Provides a definition of pH and how it is calculated. Explains a pH/pOH scale and the mathematical relationship between pH and pOH. Demonstrates…

By Alberta Advanced Education - 1996

The topic of acid deposition leads to a calculation of hydronium and hydroxide ion concentrations, pH and pOH using Kw. These calculations…

By Alberta Advanced Education - 1996

An experiment comparing acidic solutions in relationship to their pH and conductivity leads to a definition of strong and weak acids. A similar…

By Alberta Advanced Education - 1996

Various real-life contexts are used to present the different calculations involving Ka, Kb, pH, pOH, hydronium ion, hydroxide ion, and the percentage…

By Alberta Advanced Education - 1996

Shows how the Brønsted-Lowry Theory explains the limitations of Arrhenius' Theory. Demonstrates the five-step method for writing Brønsted-Lowry…

By Alberta Advanced Education - 1996

Reactions involving polyprotic and anions of polyprotic acids can be predicated by adding the proton transfer equations together. Students test and…

By Alberta Advanced Education - 1996

Various types of pH curves are generated using a pH probe and a computer interface, comparisons of the different curves are made, and information…

By Alberta Advanced Education - 1996

Demonstrates universal indicators and universal indicator strips. Students are challenged to design an experiment that determines the relative pH of…

By Alberta Advanced Education - 1996

Determines an unknown acid concentration through the selection of proper indicators, the standardizing of the titrant, the titration of the unknown…

By Alberta Advanced Education - 1996

Hydrochloric acid is standardized using a sodium carbonate solution of known concentrate. The HCI titrant is used to titrate the ammonia. Data is…

By Alberta Advanced Education - 1996

Examines and evaluates uses of acids and bases in the food and pharmaceutical industries. Shows how acids, produced directly or indirectly, can lead…

By Alberta Advanced Education - 1996

Buffers, and how they work, are explained in terms of the Brønsted-Lowry Theory and Le Châtelier's Principle. Students explore the importance of…

By Liacos Educational Media - 2018

In Episode 1, Temperature, we get down to the atomic level to explain how hot things are different to cold things, we describe what a temperature…

By Liacos Educational Media - 2018

In Episode 4, The Kelvin Scale, we look at the temperature scale that in many ways is superior to the Celsius and Fahrenheit scales. Zero on the…

By Liacos Educational Media - 2018

In Episode 3, Thermal Expansion, we look at the fact that substances expand when they get hot and contract when they get cold and we explain why…