Questions: To answer this question, you may need access to the periodic table of elements, a calculator, and the equations and charts in the tutorial associated with this question.
A typical barometric pressure in Denver, Colorado, is 615 mm Hg.
What is this pressure in kilopascals?
a.) 0.0080 kPa
b.) 82.0 kPa
c.) 4.67 × 10^5 kPa
d.) 0.809 kPa
Transcript text: To answer this question, you may need access to the periodic table of elements, a calculator, and the equations and charts in the tutorial associated with this question.
A typical barometric pressure in Denver, Colorado, is 615 mm Hg .
What is this pressure in kilopascals?
a.) 0.0080 kPa
b.) 82.0 kPa
c.) $4.67 \times 10^{5} \mathrm{kPa}$
d.) 0.809 kPa
Solution
Solution Steps
Step 1: Understand the Conversion Factor
To convert the pressure from mm Hg to kilopascals (kPa), we need to know the conversion factor between these units. The conversion factor is:
\[ 1 \text{ mm Hg} = 0.1333 \text{ kPa} \]
Step 2: Perform the Conversion
Given the pressure in Denver is 615 mm Hg, we can convert this to kPa using the conversion factor:
\[ 615 \text{ mm Hg} \times 0.1333 \text{ kPa/mm Hg} = 81.9495 \text{ kPa} \]
Step 3: Round to Four Significant Digits
We need to round the result to four significant digits:
\[ 81.9495 \text{ kPa} \approx 82.00 \text{ kPa} \]
Final Answer
The pressure in kilopascals is \(\boxed{82.0 \text{ kPa}}\). The correct answer is b.) 82.0 kPa.