From this tank at a depth of 35 m? assume thal ui ture remains constant. pl.11 use the ideal gas and van der waals equations to cal- culate the pressure when 2.25 mol h2 are confined to a vol ume of 1.65 l at 298 k. is the gas in the repulsive or attractive region of the molecule-molecule potential? p1.12 a rigid vessel of volume 0.400 m3 containing h2 at 21.25°c and a pressure of 715 × 103 pa is connected to a s ond rigid vessel of volume 0.750 m3 containing ar at 30.15 at a pressure of 203 × 103 pa. a valve separating the two ec- °c