Question

Toricelli’s barometer used mercury. Pascal duplicated it using French wine of density 984 kg m¯³. Determine the height of the wine column for normal atmospheric pressure.

Answer 1

Given, the density of the wine is 984  kg/ m 3 .

The hydrodynamic pressure is given by the equation,

P=ρgh h= P ρg

Substituting the values in the above equation, we get:

h= 1.01× 10 5  Pa 984  kg/ m 3 ×9.8 N/ m 2 =10.5 m

Hence, the height of the wine column for normal atmospheric pressure is 10.5 m.