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....

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...

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...

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...

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...

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...

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...

National Chemistry Olympiad tests are released after their use each year, since they cannot use them again for this event. The result: outstanding comprehensive assessment resources for general chemistry classes! This 2005 version covers...

This is the first of several worksheets of this type on thermodynamics. Learners solve for specific heat, determine if reactions are endothermic or exothermic, write balanced equations, and determine enthalpy for different reactions....

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...

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...

When first learning thermodynamics theory, your advanced chemistry learners could use these practice problems. They calculate enthalpy and entropy changes for different reactions and describe signs of change in different situations. This...

No practice problems are given on this handout; it is a detailed list of concepts to know and tips for working related problems in chemistry. Give this to learners as a study guide, or use it early in your career as a chemistry...

A brief chemistry learning exercise provides two different example problems. When learners complete the learning exercise, they practice calculating the specific heat of a metal and the enthalpy for a reaction. Teach your advanced...

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...

In this thermodynamics worksheet, students calculate the change in enthalpy for several given chemical equations provided. Students specify if the reaction was endothermic or exothermic in nature.

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...

Graphing and unit conversion are some of the skills necessary to process the data here and complete the questions.

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...

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.

Reference equations will help your class review the guidelines for reaction entropy and enthalpy calculations. The questions ask for definitions and interpretation with reference to examples given.

Examples of using a calorimeter to help find energy changes are given on this sheet. Next, there are questions about the various ways to process the data.  Pupils will practice Hess's Law to find heat of reaction and molar enthalpy

These questions require definitions of calories, temperature and heat and examples of kinetic and potential energy. There are enthalpy change calculations and some sample reactions are given which need equations. Pupils should be able to...

In this energy instructional activity, students calculate the enthalpy of chemical reactions to answer 9 problems. They determine whether the reaction is exothermic or endothermic.