Kaplan Nursing Entrance Practice Exam 2025 – The All-in-One Guide to Exam Success!

The statement regarding mass as a property of gas that accurately reflects the principles of gas behavior is that gas can have varying mass based on volume and density. This aligns with the fundamental concepts of gas laws that indicate gas can be compressed or expanded, impacting its volume.

In practical terms, while the mass of a gas is related to the amount of gas present, the density is defined as mass per unit volume. As temperature and pressure change, the volume of a gas can fluctuate significantly, leading to changes in density, which indirectly affects how we consider the mass of a given volume of gas.

Understanding this relationship is crucial because the properties of gases are often studied under varying conditions, such as changes in temperature and pressure. Recognizing that the mass can vary helps in applying concepts like the ideal gas law, where maintaining the relationship between pressure, volume, temperature, and the number of moles is essential for any calculations or predictions regarding the behavior of gases.