Here are the answers to the goals outlined for the lesson on finding absolute zero experimentally using Charles' Law:
1. Predict how the volume of a gas will change with the temperature is raised or lowered:
- The volume of a gas is directly proportional to its Kelvin temperature according to Charles' Law. As the temperature increases, the volume of the gas will also increase proportionally. Conversely, when the temperature decreases, the volume of the gas will decrease as well.
2. Calculate what the change in volume of a gas should be when the temperature is changed:
[tex] \frac{V¹}{T¹} = \frac{V²}{T²} [/tex]
from Charles' Law, you can calculate the expected change in volume when the temperature of a gas is changed. The relationship between volume and temperature allows for the prediction of volume changes based on temperature variations
3. Visualize the relationship between the temperature and volume of a gas:
- By plotting a graph of temperature (in Kelvin) versus volume for different gases, you can visually see how the volume of a gas changes with temperature. The linear relationship between temperature and volume will be evident in the graph, demonstrating the direct proportionality described by Charles' Law.
4. Make and use graphs to predict the volume of gas at different temperatures:
- Graphical representations of temperature-volume data allow for the prediction of the volume of a gas at different temperatures. By extrapolating the graphs to find the intersection point at -273°C (0 K), you can predict the behavior of gases at extremely low temperatures near absolute zero.
These goals guide the experimental process and analysis to explore the relationship between temperature and volume of gases, leading to the determination of absolute zero temperature using Charles' Law.
