What value corresponds to the atmospheric pressure reading of 8.7" hg?

The atmospheric pressure reading of 8.7 inches of mercury (inHg) can be accurately converted into another unit of pressure. When converting from inches of mercury to pounds per square inch (psi), the conversion factor involves using the relationship of mercury's density and gravitational force.

To perform the conversion, you can use the formula:

[ \text{Pressure (psi)} = \text{Height of mercury (inHg)} \times 0.491 ]

Using this, for an atmospheric pressure of 8.7 inHg, the calculation would be:

[ 8.7 , \text{inHg} \times 0.491 , \text{psi/inHg} = 4.28 , \text{psi} ]

However, in this context, we see that the value given in option B, 24.9359, represents the atmospheric pressure in kPa (kilopascals), which can also be derived using the conversion:

To convert inches of mercury to kPa, the conversion factor is approximately 3.386. Thus:

[ 8.7 , \text{inHg} \times 3.386 , \text{kPa/inHg} =