Question

analyze the image below. the image depicts a cylinder filled with gas particles and a piston above it with a directional arrow showing the movement of the piston. both cylinders have the same amount of gas particles. what is the effect of the piston movement on the volume of the cylinder on the right compared to the cylinder on the left? a. pushing the piston decreases the volume of the gas therefore the pressure is decreased. b. pushing the piston decreases the volume of the gas therefore the pressure is increased. c. pulling the piston increases the volume of the gas therefore the pressure is increased. d. pulling the piston increases the volume of the gas therefore the pressure is decreased.

Explanation:

Step1: Recall Boyle's Law

Boyle's law states that for a given mass of gas at constant temperature, $P_1V_1 = P_2V_2$, where $P$ is pressure and $V$ is volume, and they are inversely - proportional.

Step2: Analyze piston movement

The piston on the right is moving up, which increases the volume of the gas in the cylinder on the right. According to Boyle's law, when the volume $V$ increases while the amount of gas (mass) and temperature are constant, the pressure $P$ decreases.

Answer:

The upward - moving piston increases the volume of the gas therefore the pressure is decreased.