Question

In Lhasa, Tibet, the elevation is 12,000 feet. The altimeter reading in an airplane is 19,00 in Hg.

a. How much is the pressure in psi?

b. How much is the pressure in atm?

Answer 1

a.

The relationship between inch of Hg and psi is given as follows:

1 in Hg = 0.491154 psi

Therefore, conversion factor for converting in Hg into psi is (0.491154 psi / 1 in Hg). Convert 19.00 Hg into psi as follows:

19.00 in Hg = 19.00 in Hg x (0.491154 psi / 1 in Hg)

19.00 in Hg = 9.332 psi

Therefore, in Lhasa pressure in psi is 9.332 psi

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b.

The relationship between inch of Hg and atm is given as follows:

1 in Hg = 0.0334211 atm

Therefore, conversion factor for converting in Hg into atm is (0.0334211 atm/ 1 in Hg). Convert 19.00 Hg into atm as follows:

19.00 in Hg = 19.00 in Hg x (0.0334211 atm / 1 in Hg)

19.00 in Hg = 0.6350 atm

Therefore, in Lhasa pressure in atm is 0.6350 atm