For 10 points, name this quantity that can be measured in liters.
The b parameter in the Van der Waals equation represents a correction factor for this quantity. The Gay-Lussac law is valid when this quantity is held constant. In thermodynamics, work is equal to the negative integral of pressure times the change in this quantity. This quantity is held constant in isochoric (ICE-oh-KOR-ic) processes, and most versions of the ideal gas law have the left side equal to pressure times this quantity. For 10 points, name this quantity that can be measured in liters.
The b parameter in the Van der Waals equation represents a correction factor for this quantity.
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