Question

How do I calculate the pressure of 43 in. Hg to psi

Answer 1

As given the two quantities given are pressure units

the relation between psi and in Hg is

1 psi = 2.04 inch mercury

Or

0.491 psi = 1 inch mercury

the problem can be solved by unit factor label method

the unit factor for the two units will be

`(1 in Hg)/(0.491 psi) = 1 = (0.491 psi)/(1 in Hg)`

We have to convert 43 in Hg to psi so we will use following conversion factor

43 in Hg = 43 X 0.491 psi = 21.11 psi pressure