The world record for lowest pressure (at sea level) was 652.5 mmHg recorded inside Typhoon Tip on October 12, 1979, in the western Pacific Ocean. Convert this pressure to each indicated unit. d. psi

검증된 단계별 안내

Identify the given pressure in mmHg: 652.5 mmHg.

Recall the conversion factor between mmHg and psi: 1 atm = 760 mmHg and 1 atm = 14.696 psi.

Convert the pressure from mmHg to atm using the conversion factor: \( \text{Pressure in atm} = \frac{652.5 \text{ mmHg}}{760 \text{ mmHg/atm}} \).

Use the pressure in atm to convert to psi: \( \text{Pressure in psi} = \text{Pressure in atm} \times 14.696 \text{ psi/atm} \).

Perform the calculations to find the pressure in psi.

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주요 개념

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Pressure Units

Pressure is a measure of force applied per unit area and can be expressed in various units, including mmHg (millimeters of mercury), psi (pounds per square inch), and atm (atmospheres). Understanding these units is crucial for converting pressure values from one unit to another, as each unit reflects different scales and contexts of measurement.

Conversion Factors

To convert between different pressure units, specific conversion factors are used. For example, 1 mmHg is approximately equal to 0.0193368 psi. Knowing these conversion factors allows for accurate calculations and comparisons of pressure measurements across different systems.

Ideal Gas Law

The Ideal Gas Law (PV=nRT) relates pressure (P), volume (V), temperature (T), and the number of moles (n) of a gas. While not directly required for unit conversion, understanding this law provides context for why pressure measurements are important in various scientific and engineering applications, particularly in understanding gas behavior under different conditions.