Question

Calculate the height of a column of chloroform (CHCl3) that would be supported by atmospheric pressure. The density of chloroform is 1.483 g/cm3.

Answer 1

Pressure of liquids can be calculated using the following equation;
P = hρg
where h is the height of the liquid column
ρ - density of the liquid (kgm⁻³)
g - gravitational acceleration (ms⁻¹)
The column is supported by atmospheric pressure which is equal to 101 325 Pa
substituting the values in the equation
101 325 Pa = h x 1483 kgm⁻³ x 9.8 ms⁻²
h = 7.0 m

Answer 2

According to P formula:
P = H ρ g
when it is supported by atmospheric pressure
∴ P = atmospheric pressure =1.01x10^5 N/m^2
H is the hight of the column
and when ρ is the density Kg/m^3 = 1.483g/Cm^3= 1483Kg/m^3
g is the gravitational acceleration = 9.8Kg.m/S^2
so by substitution:
∴H = (1.01x10^5) / (1483 * 9.8)
=6.9 m