Answer the following question: I read this background article the other day: The Figure below shows a graph of plotted against pressure for 1 mol of a gas at three different temperatures - 200 K, 500 K, and 1000 K. An ideal gas would have a value of 1 for that ratio at all temperatures and pressures and the graph would simply be a horizontal line. As can be seen, deviations from an ideal gas occur. As the pressure begins to rise, the attractive forces cause the volume of the gas to be less than expected and the value of drops under 1. Continued pressure increase results in the volume of the particles to become significant and the value of rises to greater than 1. Notice, that the magnitude of the deviations from ideality is greatest for the gas at 200 K and least for the gas at 1000 K. I am facing a new situation today: Tony is heating up a container of leftovers in his microwave for dinner tonight. When he puts the container in the microwave he leaves the lid on so it is still sealed. About two minutes into heating the food he hears a loud "pop" noise and looks to see the lid has completes blown off the container. Using the knowledge I acquired from the background article, how should I answer correctly the following question regarding my new situation: Will removing the lid of a pressurized container cause the pressure to increase or decrease?
Answer:
decrease