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Sulfuric Acid into Water and Ice When sulfuric acid is mixed with water the temperature rises. When sulfuric acid is added to ice, the temperature rises at first, but as the ice melts, the temperature falls.
Calorimetry / Thermochemistry
Endothermic Reaction Solid barium hydroxide octahydrate (Ba(OH)2*8H2O) and ammonium thiocyanate (NH4SCN) are mixed in a beaker, which is then placed on a few drops of water on a small board. The reaction that occurs is highly endothermic.
Thermochemistry : SystemSurrExoEndo (4 Variations)
Sulfuric acid is added to water in a beaker and the resulting solution is much warmer than either the water or acid was initially.
Identify the following items as being part of the system or the surroundings, and indicate whether the process is exothermic or endothermic.
The Chemical Adventures of Sherlock Holmes: The Serpentine RemainsKen Shaw This story is a chemical mystery, set in the context of Sherlock Holmes and Dr. Watson, that emphasizes qualitative analysis, descriptive chemistry, and forensics. Shaw, Ken. J. Chem. Educ.2008, 85, 507.
Acids / Bases |
Applications of Chemistry |
Coordination Compounds |
Calorimetry / Thermochemistry |
Forensic Chemistry |
Qualitative Analysis
Some Like It Hot, Some Like It ColdRobert G. Silberman Students combine liquids and solids in a calorimeter and use a thermometer to determine if the reaction mixture gets hotter or colder. The goal is to find a combination of a liquid and a solid that could serve as the basis for a cold pack of the type used for athletic injuries. Silberman, Robert G. J. Chem. Educ.2004, 81, 64A.
Calorimetry / Thermochemistry |
Microscale Lab
Chemistry at a Science MuseumRobert G. Silberman, Charles Trautmann, and Susan M. Merkel Interactive chemistry activities developed for science museums are described and discussed. The activities are specifically designed for young museum visitors (610 years old). Each activity involves a challenge problem that can be successfully mastered by working with some simple chemicals. Silberman, Robert G.; Trautmann, Charles; Merkel, Susan M. J. Chem. Educ.2004, 81, 51.
Friction ? A Hot Topic!? When you rub your hands together, the action of scraping the surface of your skin back and forth against each other causes ,the molecules in your skin to move a little faster. The faster that molecules move, the higher the temperature. So the friction of rubbing your hands together makes them feel warmer.
Calorimetry / Thermochemistry |
Physical Properties
Heat Up to Some Cool Reactions? In this activity, students perform a chemical reaction and record its temperature change over time. The data is graphed and analyzed.
Calorimetry / Thermochemistry |
Chemometrics
Other Resources: First 3 results
ChemPaths 104 F Mar 25John W. Moore Today in Chem 104:
* Lecture: Thermochemistry
* Reading:
Kotz: Review Ch. 5, Sec. 1-8
Moore: Review Ch. 6, Sec. 1-10
* Homework #8 due by 11:55 PM F Apr 1
* Quiz in second discussion section next week
Calorimetry / Thermochemistry
Measuring the Enthalpy ChangeEd Vitz, John W. Moore A section of ChemPrime, the Chemical Educations Digital Library's free General Chemistry textbook.
Calorimetry / Thermochemistry
Bond EnthalpiesEd Vitz, John W. Moore A section of ChemPrime, the Chemical Educations Digital Library's free General Chemistry textbook.
