Question

Conclusion: Write a conclusion statement that addresses the following questions: How did your experimental absolute zero value compare to the accepted value? Does your data support or fail to support your hypothesis (include examples)? Discuss any possible sources of error that could have impacted the results of this lab. How do you think the investigation can be explored further? Post-Lab Reflection Questions Answer the reflection questions using what you have learned from the lesson and your experimental data. It will be helpful to refer to your chemistry journal notes. Answer questions in complete sentences. Why was the line of best fit method used to determine the experimental value of absolute zero? Which gas law is this experiment investigating? How does your graph represent the gas law under investigation? Using your knowledge of the kinetic molecular theory of gases, describe the relationship between volume and temperature of an ideal gas. Explain how this is reflected in your lab data. Pressure and number of moles remained constant during this experiment. If you wanted to test one of these variables in a future experiment, how would you use your knowledge of gas laws to set up the investigation?

Answer 1

Comparing the experimental absolute zero value to the accepted value helps determine the accuracy of the experiment. The data can support or fail to support the hypothesis based on its correspondence to the predicted behavior. Possible sources of error should be acknowledged and future investigations can explore the impact of changing different variables in the gas law.

Step-by-step explanation:

The experimental absolute zero value can be compared to the accepted value by determining how close they are to each other. If the experimental value is very close to the accepted value, then it can be concluded that the experiment was successful and accurate. If the experimental value is significantly different from the accepted value, then there might have been errors or inaccuracies in the experiment.

The data can either support or fail to support the hypothesis depending on the results. If the data matches the predicted behavior and trends, then it supports the hypothesis. If the data does not correspond to the predicted behavior, then it fails to support the hypothesis. For example, if the graph shows a linear relationship between volume and temperature, which is expected according to the gas law being investigated, then it supports the hypothesis. On the other hand, if the graph shows a non-linear relationship, then it fails to support the hypothesis.

Possible sources of error in this lab could include measurement errors in temperature or volume, variations in the gas samples used, or external factors that could impact the results (e.g. changes in atmospheric pressure or humidity). It is important to identify and acknowledge these sources of error in order to improve the accuracy and reliability of future experiments.

To explore the investigation further, one could test the impact of changing either pressure or number of moles on the gas law being investigated. For example, if pressure is tested, the investigator could vary the pressure while keeping volume and temperature constant, and observe the resulting changes in the other variables. This would help to gain a deeper understanding of the relationships between different variables in the gas law.

In conclusion, comparing the experimental absolute zero value to the accepted value provides insights into the accuracy of the experiment. The data can either support or fail to support the hypothesis based on its correspondence to the predicted behavior. Possible sources of error should be considered and future investigations can explore the impact of changing different variables in the gas law.