Final answer:
According to Boyle’s Law, by decreasing the volume of a pool float, the pressure of air leaving the float increases. Hence, the third option is correct.
Step-by-step explanation:
When deflating a pool float, you can press down on it to get it to deflate faster thanks to Boyle’s Law. By decreasing the volume of the float, you increase the pressure of air leaving the float. Boyle's Law is a fundamental principle in physics that states the inverse relationship between the volume and pressure of a gas; as the volume decreases, the pressure increases if the temperature is held constant.
By compressing the float, you create a smaller space for the air, causing the air molecules to collide more frequently with the container walls, elevating the pressure. This increased pressure expedites the escape of air, facilitating a faster deflation process. Understanding Boyle's Law provides insight into the dynamic interplay between volume and pressure, influencing the behavior of gases in various practical scenarios, including the deflation of inflatable objects.