How does a closed system store energy?
Apply the first law to a fixed mass.
Open lesson ↗Thermal and Fluid Science
Energy in closed systems
Follow the physical idea, explore it visually, then connect it to the equations.
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What does a moving boundary do?
Connect boundary work to a pressure-volume path.
Open lesson ↗How much energy changes the temperature?
Use specific heats with appropriate assumptions.
Open lesson ↗