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A barometer the liquid-1 with density 2 Kg/m^3 and height 5 cm below the outside level and above that liquid-2 with density 0.5 Kg/m^3 and length 10 cm, what is the gauge pressure of the gas?(a) 0.01 Pa(b) 0.05 Pa(c) 0.1 Pa(d) 0.5 PaI had been asked this question during an interview for a job.This is a very interesting question from Differential Pressure Measurements topic in chapter Temperature and Pressure of Basic Chemical Engineering |
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Answer» RIGHT answer is (d) 0.5 Pa To explain: GAUGE PRESSURE of GAS + Pressure of liquid-2 = Pressure of liquid-1, => Gauge pressure of gas = 2*10*0.05– 0.5*10*0.1 = 0.5 Pa. |
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