Question

Un manómetro se usa para medir la presión en un recipiente. El fluido que se emplea tiene una densidad relativa de . Y la altura de la columna del manómetro es de . Si la presión atmosférica local es de , determine la presión absoluta dentro del recipiente.

Answer 1

P =
`P_(atm) + \rho \ g \ h`

Step-by-step explanation:

For this exercise we use that the pressure at a given level is the same, so we set a level on both sides of the pressure gauge, just the point where the liquid is on the system side, with a pressure (P)

P =
`P_(atm) + \rho \ g \ h`

where
`P_(atm)` is the atmospheric pressure in pascals, ρ the density of the liquid, g is related to gravity and h the height of the liquid from the marked reference.