Question

What height of water column produces the same pressure as a 760 mm high column of Hg.
​

Answer 1

As we know,
760mm mercury= 75cm = 1 atm = 101325 pascals.

So we have to find for what height of water will give that pressure,

Let the height be h,
Now,

dgh = 101325,

where d is density and h is the height rose,
Solving furthur we get,
(1000kg/m^3)(9.81m/s^2)(h) = 101325 Pa,

h = 10.3287 meters.

So the required height is 10.3287 meters.