A closed tank contains three different fluids with a vapor space above the oil, as shown in the figure below. Pressure gauge 1 reads the gauge pressure of the vapor space (P1) and pressure gauge 2 reads the pressure at the bottom of the tank (P2). When P1 = 25 kPa, determine: a. Height of glycerine (h) in the tank if P2 = 95.66 kPa . P2 reading if glycerine is replaced with water