1. Two-fluid U-tube Manometer. Using pressure balances on the fluids found in Figure 2.2-4b, explicitly derive Equation 2.2-15. 2. Measurement of Small Pressure Differences. The two-fluid U-tube...

1. Two-fluid U-tube Manometer. Using pressure balances on the fluids found in Figure 2.2-4b, explicitly derive Equation 2.2-15.

2. Measurement of Small Pressure Differences. The two-fluid U-tube manometer is being used to measure the difference in pressure in a line containing air at 1 atm abs pressure. The value of R0 = 0 for equal pressures. The lighter fluid is a hydrocarbon with a density of 812 kg/m³
and the heavier water has a density of 998 kg/m³
. The inside diameters of the U tube and reservoir are 3.2 mm and 54.2 mm, respectively. The reading R of the manometer is 117.2 mm. Calculate the pressure difference in mmHg and Pa.