A stream of humid air containing 2.00mol2H2O(v) and the balance dry air is to be humidified to a water content of 10.5mole%H2O. For this purpose, liquid water is fed through a flowmeter and evaporated into the air stream. The flowmeter reading, R, is 105.0. The only available calibration data for the flowmeter are two points scribbled on a sheet of paper, indicating that readings R=21.0 and R=50.0 correspond to flow rates V=42.0ft3/h and V=96.9ft3/h, respectively. Estimate the flow rate of the liquid water feed if the volumetric flow rate is a linear function of R. V=ft3/hn= Ib-mole/h Estimate the flow rate of the liquid water feed if the reading R is a linear function of V05. V=ft3/hn=lb-mole/h