What does Boyle's law state about gas volume and pressure?

What does Boyle's law state about gas volume and pressure?

• A. They are directly related
• B. They are inversely related
• C. They are independent
• D. They remain constant

Answer: (B)

Boyle's Law describes the relationship between the pressure and volume of a gas when the temperature is held constant. It states that the volume of a gas is inversely proportional to its pressure. This means that when the pressure on a gas increases, its volume decreases, and vice versa, provided the temperature remains constant.

For example, if you take a sealed syringe filled with air and push the plunger down, you are increasing the pressure inside the syringe. According to Boyle's Law, the volume of air decreases as the pressure increases. This behavior can also be observed when you release pressure, such as letting air out of a balloon, causing the volume of the gas to expand.

This inverse relationship is fundamental in understanding how gases behave under changing pressure conditions and is critical in various scientific and practical applications, ranging from breathing mechanisms to the workings of gas-powered engines. Other options do not describe this relationship accurately; they suggest that pressure and volume move in the same direction, remain unchanged, or act independently, which contradicts the established principles of Boyle's Law.