Question

Convert 1mm of Hg into pascal.Take density of Hg=13.6×1000 and g =9.8 m/s

Answer 1

δP=hρg=0.001m×13.6×1000kg/m³×9.8m/sec²
=133.28Pa

Answer 2

1 mm of Hg is equal to 133.28 pascals.

Given:

1 mm of Hg = 0.001 m of Hg

$\text{Density} = \rho = 13.6 \times 1000 \ kg.m^{-3}$

$g = 9.8 \ m/s^2$

Solution:

We have to convert it into pascal.

We know that, the pressure is given by the formula,

$\delta P=h \rho g$

Putting the given values in above equation, we get,

$\delta P=0.001 \times 13.6 \times 1000 \times 9.8$

$\delta P=133.28 \ \mathrm{Pa}$

Therefore, 1 mm of Hg is equal to 133.28 pascals.