Pressure-volume work is the work done by or on a system during a change in volume at constant pressure, commonly encountered in thermodynamic processes involving gases. It is calculated using the formula W = PΔV, where W is work, P is pressure, and ΔV is the change in volume.

Pressure-volume Work

Pressure-volume work

Work done is the energy transferred when a force is applied to an object causing it to move. It is calculated as the product of the force and the distance moved in the direction of the force, and is measured in joules.

work done

change in volume

constant pressure

Thermodynamic processes describe the changes in state variables such as temperature, pressure, and volume within a thermodynamic system, often involving the transfer of energy as heat or work. These processes are fundamental to understanding how energy is conserved and transformed in physical systems, governed by the laws of thermodynamics.

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