If you cut the numbers of particles in half, how does the value of pressure change ?

the number of valence electrons for each molecule or ion is shown beneath the structure. remember hydrogen will not have more than two electrons. this hydrogen is part of a covalent bond (sharing two electrons). a double bond here would cause hydrogen to share four electrons with phosphorus.

in the analysis of systems that involve fluid flow, we frequently encounter the combination of properties u and pv.