4. Gas laws. Charles' law Simulate the behaviour of gases Steps This application allows you to simulate the behaviour of gases. You can reproduce experiments to see the effect of temperature on particle velocity, deduce laws, etc. It is found at phet.colorado.edu. 14 Simulate the conditions in which a gas experiences transformations at V = constant, p = constant and T = constant. In each case, complete a table of data for the independent variable and the dependent variable. Draw a graph of the data and deduce the corresponding law. Conclusions 1. Choose the study of Laws. 2. Select the quantity that will remain constant. 3. Select whether you want to display the Width of the container (to give an idea of the volume), the Stopwatch and the Collision Counter (to give an idea of the pressure). 4. Move the piston up and down one or more times to allow particles to enter the gas chamber. 5. Move the slider up or down to make the temperature hotter or colder. The temperature of the container will change accordingly (you can display it in °C or in K). 6. Read the resulting pressure (you can choose to display it in kPa or atm). Options for studying transformations at a constant pressure. You can change the volume of the container by var ying the width . 2 5 5 6 4 1 3 18
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