A U-tube manometer is used to measure the pressure difference in air (as shown in Figure...

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A U-tube manometer is used to measure the pressure difference in air (as shown in Figure 2). The height differences observed are h, = 30cm, h2 = 20cm, hz 10cm. P1 PA %3D %3D P: h2 (a) What is the pressure difference (p1 - P2) if the manometer liquid Pg is water, and the temperature is 20°C? What is (p1 - P2) if the temperature is h, 50°C? (b) What is the pressure difference (p, – P2) if the manometer liquid Pgis mercury, and the temperature is 20°C? (c) Now the working fluid (pa) is water, and the manometer fluid Pg is Bromoethylbenzene (Meriam blue). What is the pressure difference (p - P2) if the temperature is 20°C? PB Figure 2: Sketch of a U-tube manometer, where h denotes the liquid height difference between different level in the two legs of the manometer. A U-tube manometer is used to measure the pressure difference in air (as shown in Figure 2). The height differences observed are h, = 30cm, h2 = 20cm, hz 10cm. P1 PA %3D %3D P: h2 (a) What is the pressure difference (p1 - P2) if the manometer liquid Pg is water, and the temperature is 20°C? What is (p1 - P2) if the temperature is h, 50°C? (b) What is the pressure difference (p, – P2) if the manometer liquid Pgis mercury, and the temperature is 20°C? (c) Now the working fluid (pa) is water, and the manometer fluid Pg is Bromoethylbenzene (Meriam blue). What is the pressure difference (p - P2) if the temperature is 20°C? PB Figure 2: Sketch of a U-tube manometer, where h denotes the liquid height difference between different level in the two legs of the manometer.