Question

At 27 degrees cesius, five identical rigid 2.0 L vessels are filled with N2(g) and sealed. Four of the five vessels also contain a 0.050 mol sample of NaHCO3(s), NaBr(s), Cu(s), or I2(s), as shown in the diagram above. The volume taken up by the solids is negligible, and the initial pressure of N2(g) in each vessel is 720 mm Hg. All four vessels are heated to 127 degress celsius and allowed to reach a constant pressure. At 127 degrees celsius, the pressure in vessel 1 is found to be higher than that in vessel 2. Which of the following reactions best accounts for the observation?

Answer 1

To answer the student's question, more details regarding the substances in each vessel are required. Generally, if one substance releases additional gas upon heating, it would account for the higher pressure observed in that vessel.

Step-by-step explanation:

The student's question relates to the observation of varying pressures in sealed vessels containing N2(g) and other substances when heated. The provided examples and question fragments suggest a focus on the behavior of gases, possible chemical reactions at elevated temperatures, and the application of gas laws like Boyle's law to explain such behavior. However, to directly address the student's question, there would need to be more information about the specific substances in each of the vessels and the reactions they may undergo at higher temperatures.

Without complete information, it's not possible to determine which reaction accounts for the observed difference in pressure. From a theoretical perspective, if one vessel contains a substance that decomposes into gas at 127 degrees Celsius, it could increase the pressure in that vessel compared to another vessel with a substance that does not decompose or reacts to produce less gas.