2. A liquid reactant ( = 60 lbm /ft 3, = 0.0040 lbm /ft s) is pumped from a holding tank at atmospheric pressure through 1800 ft of 7" ID steel pipe and into a reactor at an absolute pressure of 5.0 atm.The reactor is at a level 90 ft below the holding tank. The mass flow rate is 90,000 lb m /hr. Find the power (in hp) required for a 60% efficient pump.