(c) What happens to a gas if you put it under extremely high pressure?

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Identify the properties of gases under normal conditions, where they have random motion and occupy the entire volume of their container.

Understand that applying pressure to a gas reduces its volume, as described by Boyle's Law, which states that the pressure of a gas is inversely proportional to its volume when temperature is constant (P \(\propto\) 1/V).

Consider the kinetic molecular theory, which explains that increasing pressure forces gas molecules closer together, which can increase the frequency of collisions between the molecules.

Recognize that at extremely high pressures, the gas molecules are forced into close proximity, potentially leading to a phase change from gas to liquid if the temperature is below the critical temperature of the substance.

Explore the implications of such high pressure on real-life systems, such as in industrial applications where gases are compressed and stored as liquids for better efficiency and safety.

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Key Concepts

Here are the essential concepts you must grasp in order to answer the question correctly.

Gas Laws

Gas laws describe the behavior of gases under various conditions of temperature, pressure, and volume. The most relevant laws include Boyle's Law, which states that pressure and volume are inversely related at constant temperature, and Charles's Law, which relates volume and temperature. Understanding these laws helps predict how a gas will respond to changes in pressure.

Compressibility

Compressibility refers to the ability of a substance to decrease in volume under pressure. Gases are highly compressible compared to liquids and solids, meaning that applying high pressure can significantly reduce their volume. This property is crucial in applications like gas storage and transport, where gases are often compressed to save space.

Phase Changes

Phase changes occur when a substance transitions between solid, liquid, and gas states due to changes in temperature or pressure. Under extremely high pressure, gases can undergo phase changes, potentially becoming liquids or even solids, depending on the temperature and the specific gas involved. This concept is essential for understanding the behavior of gases in extreme conditions.