Beyond Labz

The Balloon Experiment. In this experiment, a balloon is used to reflect the changes in volume of a gas as the pressure, temperature, or number of moles are adjusted. The balloon is considered to be a perfect balloon in that it exerts no pressure on the gas inside. Adjusting the pressure and temperature in the experiment changes the pressure and temperature of the inert, ideal gas inside the chamber. The various controls for the experiment are as follows:

• Hoist Controller. Clicking on the hoist controller returns the experiment to the stockroom, bypassing the wide view of the experiment.
• Zoom Out. Clicking on the zoom out arrow returns the user to the wide view of the experiment in the gases laboratory.
• Save Data. Clicking the Save button will create a link in the electronic lab book where all the P, V, T, and n data will be saved as the various parameters are changed in the experiment. The saving process will continue automatically until the Save button (now labeled Stop) is clicked again. Clicking on the lab book will bring up a data window displaying all the saved data in columns. This data can be selected, copied, and then pasted into an external spreadsheet program for further analysis.
• Reset Experiment. Clicking the Reset button will automatically reset the experiment to its initial state but with no gas added to the experiment. This button is also used to reset the experiment if the balloon was popped.
• Lab Book. Clicking on the lab book will open the electronic lab book where notes can be recorded and P, V, T, and n data can be saved.
• Bell. Clicking on the bell will bring up the Beyond Labz support page.
• LCD Controllers. The LCD controllers are used to observe the changes and to control the units displayed (if applicable) for the volume, the pressure, the temperature, and the number of moles of gas in the balloon. Details on manipulating the numbers displayed LCD Controllers are given in this article.

The Pressure Experiment. In this experiment, a motor driven piston is used to change the volume of the gas and a pressure transducer is used to measure the resulting effects on the pressure. The temperature of the cylinder can also be adjusted. The various controls for the experiment are as follows:

• Hoist Controller. Clicking on the hoist controller returns the experiment to the stockroom, bypassing the wide view of the experiment.
• Zoom Out. Clicking on the zoom out arrow returns the user to the wide view of the experiment in the gases laboratory.
• Save Data. Clicking the Save button will create a link in the electronic lab book where all the P, V, T, and n data will be saved as the various parameters are changed in the experiment. The saving process will continue automatically until the Save button (now labeled Stop) is clicked again. Clicking on the lab book will bring up a data window displaying all the saved data in columns. This data can be selected, copied, and then pasted into an external spreadsheet program for further analysis.
• Reset Experiment. Clicking the Reset button will automatically reset the experiment to its initial state but with no gas added to the experiment.
• Lab Book. Clicking on the lab book will open the electronic lab book where notes can be recorded and P, V, T, and n data can be saved.
• Bell. Clicking on the bell will bring up the Beyond Labz support page.
• LCD Controllers. The LCD controllers are used to observe the changes and to control the units displayed (if applicable) for the volume, the pressure, the temperature, and the number of moles of gas in the experiment. Details on manipulating the numbers displayed LCD Controllers are given in this article.

The Temperature Experiment. A motor driven piston is used again to change the volume, but in this experiment the resulting temperature change is measured as a consequence of the volume and pressure changes. This is actually a somewhat virtual experiment since there is no practical method available to change the pressure in a constant volume, constant mole experiment or to change the volume keeping the pressure and number of moles constant. The various controls for the experiment are as follows:

• Hoist Controller. Clicking on the hoist controller returns the experiment to the stockroom, bypassing the wide view of the experiment.
• Zoom Out. Clicking on the zoom out arrow returns the user to the wide view of the experiment in the gases laboratory.
• Save Data. Clicking the Save button will create a link in the electronic lab book where all the P, V, T, and n data will be saved as the various parameters are changed in the experiment. The saving process will continue automatically until the Save button (now labeled Stop) is clicked again. Clicking on the lab book will bring up a data window displaying all the saved data in columns. This data can be selected, copied, and then pasted into an external spreadsheet program for further analysis.
• Reset Experiment. Clicking the Reset button will automatically reset the experiment to its initial state but with no gas added to the experiment.
• Lab Book. Clicking on the lab book will open the electronic lab book where notes can be recorded and P, V, T, and n data can be saved.
• Bell. Clicking on the bell will bring up the Beyond Labz support page.
• LCD Controllers. The LCD controllers are used to observe the changes and to control the units displayed (if applicable) for the volume, the pressure, the temperature, and the number of moles of gas in the experiment. Details on manipulating the numbers displayed LCD Controllers are given in this article.

The Cylinder Experiment. This experiment is similar to the balloon experiment in that the volume is dependent on changes in pressure, temperature, and the number of moles of gas. However, in this experiment, the selected gas is added to the experimental chamber (there is no regulator control in this experiment) and then a sample of gas is trapped in the cylinder when a frictionless, massless piston is placed on top of the cylinder. The number of moles of gas trapped in the cylinder is determined by the temperature and pressure of the gas in the chamber at the time the piston is placed on the cylinder. The walls of the cylinder are rigid, consequently, pressure can only be exerted on the gas in the cylinder through the piston. This is accomplished by either adjusting the external pressure of the gas in the chamber or by placing weights on the piston. The piston can only be removed when there are no weights on the piston and when the piston is at the top of the cylinder. For some calculations it will be necessary to know that the cylinder diameter is 15 cm and the cylinder height is 40 cm. The various controls for the experiment are as follows:

• Hoist Controller. Clicking on the hoist controller returns the experiment to the stockroom, bypassing the wide view of the experiment.
• Zoom Out. Clicking on the zoom out arrow returns the user to the wide view of the experiment in the gases laboratory.
• Save Data. Clicking the Save button will create a link in the electronic lab book where all the P, V, T, and n data will be saved as the various parameters are changed in the experiment. The saving process will continue automatically until the Save button (now labeled Stop) is clicked again. Clicking on the lab book will bring up a data window displaying all the saved data in columns. This data can be selected, copied, and then pasted into an external spreadsheet program for further analysis.
• Reset Experiment. Clicking the Reset button will automatically reset the experiment to its initial state but with no gas added to the experiment. This button is also used to reset the experiment if the piston breaks.
• Lab Book. Clicking on the lab book will open the electronic lab book where notes can be recorded and P, V, T, and n data can be saved.
• Bell. Clicking on the bell will bring up the Beyond Labz support page.
• LCD Controllers. The LCD controllers are used to observe the changes and to control the units displayed (if applicable) for the volume/moles, the internal pressure, the external pressure, the temperature, and the mass in the experiment. Details on manipulating the numbers displayed LCD Controllers are given in this article.