= Pressure–volume diagram
{wiki=Pressure–volume_diagram}
A pressure-volume (P-V) diagram is a graphical representation used in thermodynamics to illustrate the relationship between the pressure (P) and volume (V) of a system, typically a gas, during various processes. The diagram provides insights into the behavior of gases during expansion, compression, and phase changes. \#\#\# Key Features of a P-V Diagram: 1. **Axes**: - The horizontal axis (x-axis) represents volume (V), often in liters or cubic meters.
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