Vermilion Parish High School Chemistry"Raising the Bar"

Change and Energy Transfer
  • Gas Laws: In part one of this two part exploration, you will measure how the pressure of a confined gas changes with changes in the volume. The gas will be captured in a syringe which has a volume scale printed on it. The syringe will be attached to a pressure sensor to measure the pressure of the gas within the syringe. In part two, you will use the Chemistry Sensor to measure the pressure of the gas inside a rigid container and use a temperature probe to measure the temperature of the water bath in which the container is immersed. You will then use a graph of Absolute Pressure versus Temperature data to determine the relationship between pressure and temperature and to estimate the value of absolute zero.

  • Gas Law Program: A gas law simulation program with guided inquiry and open-ended inquiry activities.

  • Heat of Fusion and Vaporization: In this two-part activity, students will determine the DH of fusion and vaporization for water. The directions are written for using the GLX.

  • CALORIMETRY: HEAT OF FUSION OF ICE: This experiment determines how much heat energy is needed to melt an ice cube in a calorimeter. Can be adapted to use with a temperature sensor.

  • Heating Curves & Phase Diagrams: Use interactive heating curve diagrams to explore phase changes, heat of fusion, and heat of vaporization. Macroscopic views of ice melting and water boiling are shown in sync with the appropriate sections of the heating curve. Includes practice exercises.  

  • Heating Curve Animation: This interactive site shows a heating curve of water with questions for students to answer.

  • Coffee Cup Calorimetry: Experiments using coffee cups to determine heat of solution and specific heat of different metals. Can be adapted to use temperature sensors.

  • Heat Transfer Between Metal and Water: This virtual lab allows students to vary the metal & its temperature as well as the amount of water & its temperature to perform calorimetry experiments.

  • Catalyst & Activation Energy: In this United Streaming video segment, catalysts are explained and lab demonstrations are used to show how catalysts lower activation energy.

  • Activation Energy: An interactive tutorial that describes that difference in activation energy of an endothermic and exothermic reaction.

  • Simple Heat of Reaction: Using a simple styrofoam calorimeter and with the computer as a temperature measuring device (i.e., a thermometer), the heat of a strong acid-strong base reaction is measured. Can be adapted for use with any temperature sensor.

  • Heat of Neutralization: Students will determine the molar enthalpy of neutralization in this virtual lab.

 

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