This is an excellent simulation for introducing Boyle's Law, Charles' Law, and the ideal gas law in general chemistry. It guides users into understanding the relationships of the Ideal Gas Law. Three experiments are included which enable users to explore the fundamental concepts of Ideal Gas Law and engage them in inquiry-based exercises (see experiment 3).
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Evaluation and Observation
The model is accurate and provides feedbacks to users. Users can make predictions and test their predictions.
Potential Effectiveness as a Teaching Tool
Graphical tool such as thermometer, pressure chamber, gas containers, volume meter, enhance the presentation of the model. Output variables from the graphical tools can be recorded for further analysis and generalization. The user calibrates the virtual instrument and can change input variable and see the consequences of their decisions as a graphical representation.
Be aware: Simulation may take time to download, depending on the speed of your Internet connection.
Ease of Use for Both Students and Faculty
The interface is well designed and the program is user-friendly. The program allows users to change input variables (system parameters) and see the effects of the changes accurately displayed on a model window. User can record outputs variable during virtual experiment for subsequent use.
Navigating the simulation is easy if it works. Make sure you print copy of the experimental section before using the simulation so that you would not have to switch back and forth from model window to the instruction while performing a virtual experiment. We experienced occasional problems related to (1) Simulation Applet (user interface) not displaying or, (2) the applet displays with some missing elements. If the problems occur, quit other applications and try refreshing (reload) your browser.