A refrigerant system is rated at 100 tons where 1 ton = 200 Btu/min. Assume cold water returns from the building at 44 degreeF and its then cooled to 36 degreeF in the chiller. the total cooling is 20000Btu/min and the water flow rate is must be 2500 Ibm/min. Calculate system pressure and mass flow rate if the cooling load is 200 tons . Include all assumptions.