High School

Assuming atmospheric pressure is 29.92 in. Hg, determine the pressure of the gas in kPa.

A. 81.1 kPa
B. 0.811 kPa
C. 81,100 kPa
D. 608 kPa

Answer :

Final answer:

To convert atmospheric pressure from inches of mercury to kilopascals, multiply by the conversion factor of 3.386. The pressure of the gas is 101.307 kPa. None of the correct option.

Explanation:

To convert pressure from inches of mercury (in. Hg) to kilopascals (kPa), we can use the following conversion factor:

1 in. Hg = 3.38639 kPa

Given atmospheric pressure as 29.92 in. Hg, we can use this conversion factor to find the pressure in kPa:

Pressure (in kPa) = Pressure (in. Hg) × (3.38639 kPa / 1 in. Hg)

Substituting the given atmospheric pressure:

Pressure (in kPa) = 29.92 in. Hg × (3.38639 kPa / 1 in. Hg)

Calculating this:

Pressure (in kPa) = 29.92 in. Hg × 3.38639 kPa/in. Hg

Pressure (in kPa) ≈ 101.325 kPa

So, the correct answer is not among the given options. However, the pressure of the gas in kPa, assuming atmospheric pressure is 29.92 in. Hg, is approximately 101.325 kPa.