In the image, we have a cylindrical container illustrating a thermodynamic process. The container is divided into two sections by a movable piston. The lower section contains a coiled spring immersed in a blue liquid, while the upper section above the piston contains a pink gas. The coiled spring in the liquid represents potential energy storage as it’s compressed. The transparent piston indicates a boundary where the energy transfer occurs between the spring and the gas. As the spring exerts force, it can move the piston, changing the volume and pressure of the gas above it. This diagram captures the principles of spring-piston systems, useful to understand concepts such as work done by springs, gas laws, and energy conversion in physics and engineering fields. The caption reads: "Figure 2–19 © Cengage Learning. All rights reserved."

In the image, we have a cylindrical container illustrating a thermodynamic process. The container is divided into two sections by a movable piston. The lower section contains a coiled spring immersed in a blue liquid, while the upper section above the piston contains a pink gas. The coiled spring in the liquid represents potential energy storage as it’s compressed. The transparent piston indicates a boundary where the energy transfer occurs between the spring and the gas. As the spring exerts force, it can move the piston, changing the volume and pressure of the gas above it. This diagram captures the principles of spring-piston systems, useful to understand concepts such as work done by springs, gas laws, and energy conversion in physics and engineering fields. The caption reads: "Figure 2–19 © Cengage Learning. All rights reserved."

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