Unit 6: Thermochemistry

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  • Access is an AACT member benefit. Project: Handwarmer Design Challenge Mark as Favorite (44 Favorites)

    In this project, students will use their knowledge of thermodynamics to design a handwarmer for a manufacturing company that can maintain a temperature of 30-40°C for at least 5 minutes and is designed for the average human hand. Students will create a final product after rounds of testing and an advertising poster that summarizes the results of their testing and promotes their design.

  • Lesson Plan: Particle Modeling of Hand Warmers Mark as Favorite (23 Favorites)

    In this lesson, students will create a particulate model of matter that explains energy changes and transfer during a physical process, such as the crystallization of a solid from a supersaturated solution.

  • Access is an AACT member benefit. Lesson Plan: Hess's Law Mark as Favorite (37 Favorites)

    In this lesson, students learn about the concepts of Hess's Law and how to solve problems involving them.

  • Access is an AACT member benefit. Lab: Utilizing Hess's Law Mark as Favorite (43 Favorites)

    In this lab, students will use a coffee cup calorimeter to collect data that will allow them to calculate ∆H for two reactions. The first reaction, between sodium bicarbonate and hydrochloric acid is endothermic. The second, between sodium carbonate and hydrochloric pressure, is exothermic. They will then use their experimental values and Hess’s Law to determine ∆H for the decomposition of sodium bicarbonate, compare their calculated value to the theoretical value, and calculate the percent error. This resource includes a prelab presentation and sample calculations.

  • Access is an AACT member benefit. Lab: Thermodynamics Escape Room Mark as Favorite (73 Favorites)

    In this lab, students are presented with an escape room scenario that challenges them to complete three tasks in order to escape from an old, mysterious Gothic house. Students are given access to a small assortment of chemicals, and standard lab equipment. They must determine which chemicals and equipment will help them to light a tap light without touching it, free a key from a block of ice without using a conventional heat source, and free a lock that is buried in a pile of glue.

  • Access is an AACT member benefit. Lesson Plan: Hess’s Law Application Mark as Favorite (19 Favorites)

    In this lesson students will determine the ΔHrxn of an unknown reaction using a calorimeter and Hess’s Law.

  • Access is an AACT member benefit. Demonstration: Energy in Hot and Cold Packs Mark as Favorite (25 Favorites)

    In this demonstration, students will observe temperature changes in chemical hot and cold packs and discuss processes of endothermic and exothermic changes. They will also see that common household products can be used to make a hot and cold pack.

  • Access is an AACT member benefit. Demonstration: Energy Mark as Favorite (10 Favorites)

    In this demonstration, students will observe the exothermic and endothermic properties of state changes of substances with different freezing and boiling points.

  • Access is an AACT member benefit. Activity: Endothermic & Exothermic Reactions Mark as Favorite (17 Favorites)

    In this activity, students observe industrial-strength snap sticks and chemical cold packs and discuss processes of endothermic and exothermic reactions.

  • Access is an AACT member benefit. Lab: Kinetics and Equilibrium Mark as Favorite (28 Favorites)

    In this lab, students will investigate the reaction of the hydrogen sulfite ion (HSO3-) and the iodate ion (IO3-) to determine the effect that changing concentration and temperature has on the reaction rate.

  • Access is an AACT member benefit. Activity: Reversible Reactions Simulation Mark as Favorite (40 Favorites)

    In this activity, students will investigate how temperature, activation energy, initial amounts of products and reactants, and type of reaction (exo- or endothermic) effect the equilibrium position of a reaction using a simulation.

  • Access is an AACT member benefit. Lab: Investigating Enthalpy and Entropy Mark as Favorite (55 Favorites)

    In this lab, students will be able to observe and measure energy changes during the formation of solutions. The students should be able to explain and describe these changes in terms of entropy, enthalpy and free energy.

  • Lab: Less Than Zero Mark as Favorite (36 Favorites)

    In this lab, students will investigate the endothermic reaction between baking soda and HCl. Students will consider stoichiometric ratios, molar concentrations, reaction scale, and calorimetry. The lab starts with a scripted reaction that uses given molar ratios, a glass beaker, and 2-M HCl. They will witness a temperature drop of about 5 to 8 C. Students then adjust the experiment so they can achieve a temperature drop of more than 20 C.

  • Access is an AACT member benefit. Lab: Heat of Neutralization Mark as Favorite (6 Favorites)

    In this lab, students carry out an acid-base reaction to calculate the heat of neutralization based on experimental data. This lab will reinforce the concepts of exothermic and endothermic processes, system and surroundings, and heat of reaction (specifically, neutralization).

  • Lab: Cool Science: Building and Testing a Model Radiator Mark as Favorite (21 Favorites)

    In this lab students construct a model of a car radiator to investigate parameters that lead to efficient cooling. Students investigate multiple variables as they experiment with various radiator designs. This lesson focuses on thermochemistry calculations and engineering practices.

  • Access is an AACT member benefit. Demonstration: Potassium Permanganate Volcano Mark as Favorite (32 Favorites)

    In this demonstration, glycerol is oxidized by using potassium permanganate as a catalyst. This gives off a tremendous amount of heat, light, and gas as a volcano of purple flames emit. It is an excellent way to introduce exothermic reactions and discuss spontaneous reactions.

  • Access is an AACT member benefit. Demonstration: Potassium Permanganate Demo Mark as Favorite (10 Favorites)

    In this demo, students witness two chemicals that take some time to react. The KMnO4 and glycerin come into contact and appear not to react, but then a flame results. This is an example of an exothermic redox reaction.

  • Access is an AACT member benefit. Lesson Plan: AP Chemistry Experimental Evidence Review Mark as Favorite (47 Favorites)

    In this lesson, students will evaluate data from 16 simulated lab experiments that were designed to mirror the Recommended Labs from the College Board. Corresponding lab experiments and demonstration options have also been included for teacher reference.

  • Access is an AACT member benefit. Lesson Plan: AP Chemistry Big Idea Review Mark as Favorite (126 Favorites)

    In this lesson, students will complete a review of all of the AP Chemistry Big Ideas and Learning Objectives using questions targeting each learning objective. This lesson is based on the AACT AP Chemistry Webinar series: What’s the Big Idea? Last Minute AP Chem Review and What’s the Big Idea? AP Chemistry Review Redux. 

  • Access is an AACT member benefit. Video: The Internal Combustion Engine Video Mark as Favorite (29 Favorites)

    This video investigates both the mechanical and the chemical processes used in the internal combustion engine, as well as the history and evolution of the combustion engine.

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