A physical quantity measuring a change of internal energy U with respect to the change of its volume V:
(1) | p = \left( \frac{\partial U}{\partial V} \right)_{N} |
with other state variables (number of particles N) being constant.
It is related to mechanical pressure and measures in the same units:
Symbol | Dimension | SI units | Oil metric units | Oil field units | Additional |
---|---|---|---|---|---|
p | Pa |
See also
Natural Science / Physics / Thermodynamics