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Test: ACT Science
The Ideal Gas Law is as follows:
A class of students began studying the Ideal Gas Law and how the Pressure and the Volume relate to one another. They took 20 moles of a sample gas and kept the room at a temperature of 300 Kelvin. They then used different sized containers of the gas to limit and expand the volume. At each different volume, they measure the pressure of the gas on its container. The table they made from their results is seen in table 1.
|
Volume of the container |
Pressure Measured in Pascals |
|
1 cubic meter |
49,884 Pascals |
|
2 cubic meters |
24,942 Pascals |
|
3 cubic meters |
16,628 Pascals |
|
4 cubic meters |
12,471 Pascals |
|
5 cubic meters |
9,976.8 Pascals |
|
6 cubic meters |
8,314 Pascals |
|
7 cubic meters |
7,126.2 Pascals |
TABLE 1
And they graph their findings in Figure 1.
FIGURE 1
| 3. | Will the graph ever cross the y-axis (the axis on which pressure is measured)? |
Yes, but it will cross at less than 
No, because in order for it to do that, Volume would have to be 0. Volume will never be 0 because an equation cannot be solved if it requires being divided by 0.
No, it would only cross the y-axis if the volume was infinite, and it is not possible to create a container with an inifinite number of cubic meters.
Yes, when volume is 0 cubic meters.
Yes, when the controlled variable of the number of moles is changed to 40.
