3. A cylinder and an airtight piston are used in the following experiment. The piston is pushed up and down in the cylinder and the resulting pressure of the air inside the cylinder is measured with a pressure gauge. The results of the experiment are recorded in the following table: Volume of Air (L) Pressure Reading (Atm) 8 1 4 2 2 4 1 8 A hypothesis concerning the apparatus is stated as follows: “When the volume of the cylinder is decreased, the pressure is increased.” Which of the following statements is true?

To determine which statement is true in this scenario, we need to analyze the data and see if there is a relationship between the volume of air in the cylinder and the pressure reading.

Looking at the table, we can see that as the volume of air decreases, the pressure reading increases. When the volume is 8 L, the pressure is 1 atm. As the volume decreases to 4 L, the pressure increases to 2 atm. When the volume further decreases to 2 L, the pressure increases even more to 4 atm. Finally, when the volume decreases to 1 L, the pressure increases to 8 atm.

Based on these observations, we can conclude that as the volume of the cylinder decreases, the pressure inside the cylinder increases. This supports the hypothesis that "When the volume of the cylinder is decreased, the pressure is increased."

Therefore, the true statement is: "When the volume of the cylinder is decreased, the pressure is increased."