What does the explosion of a closed container with dry ice illustrate?

The explosion of a closed container with dry ice illustrates a hazard associated with the physical properties of carbon dioxide. Dry ice is solid carbon dioxide, which sublimates into gas as it warms up. In a closed container, the gas generated from the sublimated dry ice increases the internal pressure. If the pressure exceeds the container's ability to withstand it, an explosion occurs. This phenomenon highlights how the physical property of carbon dioxide transitioning from solid to gas can lead to dangerous situations when there is inadequate pressure relief.

The correct answer emphasizes the physical behavior of carbon dioxide, namely its ability to occupy significantly larger volumes as a gas compared to its solid form. Understanding this property is crucial in safely handling dry ice and preventing accidents. While chemical reactions and failure of container material are important concepts, they do not directly explain the specific circumstances leading to the explosion in this case. Likewise, hazards related to liquid nitrogen involve entirely different physical properties and behaviors.