2. A column of mercury (sg=13.6) is 50 cm high. The column is open to the atmosphere, and hence the pressure at the surface of the liquid is 1 atm. What is the pressure exerted at the base of the...

What is the value of pgh?

Extracted text: 2. A column of mercury (sg=13.6) is 50 cm high. The column is open to the atmosphere, and hence the pressure at the surface of the liquid is 1 atm. What is the pressure exerted at the base of the column in psi? Solution: The total pressure at the base of the mercury column is given by: P = P, + pgh We use the 50-cm height in the equation and make sure that all terms have units of psi (Ibr/in). We will need to convert 1 atm to psi. Since the unit needed for our final value of P has a Ibr in it, we will use ge at some point in our calculations. Computing: 14.7 psi P = P, + pgh =1 atm x 1 atm + pgh = P = 24.3675 psi