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The reading on a mercury manometer at 70(°F) (open to the atmosphere at one end) is 25. 62(in). The local acceleration of gravity is 32. 243(ft)•(s)−2. Atmospheric pressure is 29. 86(in Hg). What is the absolute pressure in (psia) being measured? The density of mercury at 70(°F) is 13. 543 g•cm−3

Respuesta :

The absolute pressure in psia being measured is; 27.228 psia

What is the absolute Pressure?

Formula for absolute Pressure is;

Absolute pressure = Atmospheric pressure + Gauge pressure

P_{abs} = P_{atm} + P_g

We are given;

P_atm = 29.86 (in Hg) = 14.666 psia

Density of mercury at 70 °F; ρ = 13.543 g/cm³

Mercury Manometer reading; h = 25.62 in

Acceleration due to gravity; g = 32.243 ft/s²

Gauge pressure of the mercury = ρgh = 13.543 * 25.62 * 32.243

When we multiply and covert to psia gives; P_g = 12.562 psia

Thus;

P_abs = 14.666 + 12.562

P_abs = 27.228 psia

Read more about Absolute Pressure at; https://brainly.com/question/17200230

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