2. Benzene at 20C is pumped from one storage tank to a reactor (density =878kg/m3 ). Volumetric flow rate of benzene is 9.5104m3/s. The difference in the elevations of the two unit is 40m. The tank which serves as a source is open to the atmosphere while the tank which receives the benzene has a pressure of P2KPa abs in the vapor space above the benzene. 1-in, schedule- 40 steel pipe and 2 -in Sch-40 steel pipe is used in suction and discharge line respectively. Total friction loss of the system given as 135J/kg. Pressure gauges in the pipeline at the inlet and outlet of the pump read (P3) 34.5kPa and (P4) 1051.6kPa, respectively. Efficiency of pump is %75 a) Calculate the power of pump (kW). b) Determine the pressure in reactor P2(KPa)