Examine the barometer shown below. Convert the pressure reading on the barometer to atm and psi. A)0.991 atm; 14.6 psi B)0.991 atm; 3.90 × 10² psi C)5.72 × 10³ atm; 14.6 psi D)5.72 × 10³ atm; 3.90 × 10² psi E)75.3 atm; 1.11 × 10³ psi

Question

Quizplus · Accepted Answer

The pressure reading on the barometer is 750 mmHg. To convert to atm, divide by 760 mmHg/atm:

750 mmHg / 760 mmHg/atm = 0.9868 atm  ≈ 0.991 atm

To convert to psi, use the conversion factor of 1 atm = 14.696 psi:

0.991 atm x 14.696 psi/atm = 14.57 psi ≈ 14.6 psi

Therefore, the answer is A, which gives the correct values of 0.991 atm and 14.6 psi.

Examine the Barometer Shown Below