Multiple Choice
In Lhasa, Tibet, the elevation is 12,000 feet. The altimeter reading in an airplane is 19.50 in Hg. This pressure is equal to how many mm Hg?
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7. Gases
Pressure Units
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What is the pressure in mmHg of 3.478 atm?
A
2640 mmHg
B
2650 mmHg
C
2643 mmHg
D
2635 mmHg
Verified step by step guidance1
Understand that the problem requires converting pressure from atmospheres (atm) to millimeters of mercury (mmHg).
Recall the conversion factor: 1 atm is equivalent to 760 mmHg.
Set up the conversion equation using the given pressure in atm: \( P_{mmHg} = P_{atm} \times 760 \).
Substitute the given value into the equation: \( P_{mmHg} = 3.478 \times 760 \).
Perform the multiplication to find the pressure in mmHg.
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