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114 resources with the concept enthalpy

Lesson Planet

Energy Foundations

For Students 10th - 12th Standards
Only 10 percent of an incandescent bulb's energy is used to create light; the remaining 90 percent is heat. In the unit of activities, young chemists examine energy through hands-on activities, videos, discussions, and readings. Scholars...
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Simple Calorimetry to Find the Enthalpy of Combustion of Alcohols

For Students 9th - 12th
Accomplished chemistry learners set up a calorimeter and measure the energy released by various alcohols: methanol, ethanol, and either propanol or butanol. Lab masters will first need to design their own tables for recording data....
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2007 U.S. National Chemistry Olympiad Local Section Exam

For Students 9th - 12th
Sixty multiple choice questions cover the entire gamut of chemistry concepts. This is the local section of the U.S. National Chemistry Olympiad, where your chemistry candidates take a shot at entering the national competition. They...
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2002 U.S. National Chemistry Olympiad National Exam - Part I

For Students 9th - 12th
As to be expected from the American Chemical Society Olympiad Examinations Task Force, this 60-question test tops the charts in terms of excellence. It consists entirely of multiple choice questions designed to assess a year's worth of...
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2000 U.S. National Chemistry Olympiad National Exam - Part I

For Students 9th - 12th
The National Chemistry Olympiad exams are comprehensive tests covering an entire  year of chemistry concepts. You can use them as practice for competing in the challenge, or simply as a review, or as an actual final exam for your general...
15:40
Lesson Planet

Hess's Law and Reaction Enthalpy Change

For Students 7th - 10th
Sal introduces students to Hess's Law. The law states that the energy change of a process is independent of how we get from one state to another. He sets up a series of reactions, and solves them to illustrate the principles behind...
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2009 U.S. National Chemistry Olympiad National Exam - Part I

For Students 9th - 12th
The 2009 version of the first part of a national chemistry competition is posted for your use with olympiad hopefuls. Test takers deal with 60 multiple choice questions covering an entire year of chemistry curriculum. Use this to...
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2000 U.S. National Chemistry Olympiad Local Section Exam

For Students 9th - 12th
This 60-question comprehensive exam was designed to determine who would go on to compete in the 2000 US National Chemistry Olympiad. Hopefuls answer multiple choice questions regarding all chemistry topics taught in the first year...
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Catalytic Converter

For Teachers 9th - 12th
Two animated slides explain the decomposition reactions that occurs within a catalytic converter. An enthalpy diagram is displayed. Hess's Law is demonstrated. Finally, the analogy of football is used to explain Hess's Law. This clever...
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2001 U.S. National Chemistry Olympiad - Local Section Exam

For Students 9th - 12th
Sixty multiple-choice chemistry questions make up this comprehensive exam used for the 2001 US National Chemistry Olympiad. Every topic that you would expect to approach in a general chemistry class is queried on. You could easily use...
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Chemistry 12 Tutorial 2 - Enthalpy and Entropy

For Teachers 9th - 12th
A beautifully designed, eighteen-page chemistry tutorial awaits your learners. The main topics: enthalpy and entropy. By completing this lesson, students will be able to define these concepts, determine whether each is increasing or...
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AP Chemistry Topic 9: Thermodynamics, Review, Part III

For Students 10th - 12th
Two nitrogen reactions prompt junior chemists to calculate enthalpy and free energy changes. Those who complete this worksheet will demonstrate their skill with various thermodynamic concepts. Assign this as a homework to prepare your...
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AP Chemistry Topic 9: Thermodynamics, Review, Part IV

For Students 10th - 12th
This is a review of how advanced chemistry learners handle thermodynamics equations and calculations. Charts and graphs are included for them to read in addition to solving related problems. You will find this resource useful as a review...
12:35
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Heat of Formation

For Students 7th - 10th
In this chemistry video, Sal takes a closer look at what happens to the change in enthalpy during a chemical reaction. He points out that the enthalpy change, given constant pressure, becomes the heat added to the system at that constant...
12:08
Lesson Planet

Hess's Law Example

For Students 7th - 10th
Sal utilizes a problem from a chemistry textbook in order to illustrate what the enthalpy change is for the formation of methane from a solid carbon, and hydrogen gas. In order to solve the problem, Hess's Law must be utilized. Sal...
15:07
Lesson Planet

Enthalpy

For Students 7th - 10th
Sal introduces students to the term, "enthalpy" in this chemistry video. He defines enthalpy as: the internal energy, plus the pressure times the volume found in a system. He constructs a PV diagram to illustrate this point.
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2016 AP® Chemistry Free-Response Questions

For Students 10th - 12th Standards
The College Board published the mean score on the 2016 AP Chemistry exam as a 2.69, but a minimum of a three is required to earn college credit. Help pupils study for the upcoming exam with actual test questions, sample answers, and...
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2017 AP® Chemistry Free-Response Questions

For Students 10th - 12th Standards
More than 83,000 scholars earned college credit, thus saving time and money by passing the AP Chemistry exam in 2017. Use the exact test questions covering concepts from activation energy to solubility to prepare for the upcoming...
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2018 AP® Chemistry Free-Response Questions

For Students 10th - 12th Standards
2018 saw some of the highest AP Chemistry scores in years. The College Board released each test question covering topics from enthalpy to net ionic equations, as well as scoring guidelines and more to benefit future scientists. Example...
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Virtual Lab: Measuring the Heat Capacity of an Engine Coolant

For Students 9th - Higher Ed
Combine automotive science with chemistry! Young scholars investigate an alternative to the traditional engine coolant. They mix the chemicals virtually and collect data to determine the specific heat capacity. 
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Virtual Lab: Determining the Heat of Reaction in Aqueous Solution

For Students 9th - Higher Ed
It's gettin' hot in here! An investigative activity has learners measure the heat of reaction in a virtual setting. After exploring the reaction, they attempt to create a solution at an exact temperature.
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Virtual Lab: ATP Reaction (Thermochemistry and Bonding)

For Students 9th - Higher Ed Standards
If you've ever felt a little drained ... try converting some ATP to ADP! Science scholars perform one of life's most important reactions using a simulated lab workbench. The fun-to-use interactive allows pupils to control the reactants...
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Virtual Lab: Camping Problem III

For Students 9th - Higher Ed Standards
So, you've headed out into the wilderness and forgotten your camp stove? What's a chemist to do? Solutions may be the solution! Scholars use a virtual lab workbench to create solutions that would be capable of heating food, courtesy of a...
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The Cold, Hard Truth

For Teachers 9th - 12th Standards
Things are really getting heated in the lab! Science scholars scope out the facts about heat energy transfer using a simple lab from the K20 series. Groups collaborate to observe temperature changes between hot metal and water, then use...