Admission Test for Dental Hygiene (ATDH) Practice

Disable ads (and more) with a membership for a one time $4.99 payment

Prepare for the Admission Test for Dental Hygiene (ATDH) with our comprehensive quiz. Enhance your knowledge with questions covering all exam sections. Each question includes detailed explanations to aid your understanding and readiness for the exam.

Practice this question and more.

Which gas law would you reference to understand how decreasing the volume of a gas affects its pressure?

Charles' Law
Boyle's Law
Avogadro's Law
Graham's Law

The correct answer is: Boyle's Law

Boyle's Law describes the inverse relationship between the pressure and volume of a gas when temperature is held constant. According to this law, if the volume of a gas decreases, the pressure increases provided the temperature remains unchanged. This principle is foundational in understanding how gases behave under different conditions and is frequently applied in various scientific and practical contexts, such as in respiratory physiology. The other laws mentioned pertain to different aspects of gas behavior. Charles' Law describes the direct relationship between volume and temperature at constant pressure. Avogadro's Law relates the volume of a gas to the quantity of gas in moles at constant temperature and pressure, while Graham's Law deals with the rate of diffusion of gases as a function of their molecular weights. Understanding these distinctions highlights why Boyle's Law is the most relevant for discussing the effects of volume on pressure changes.