Convert the pressure 1.30 atm to kPa
The Correct Answer and Explanation is:
Conversion of Pressure:
To convert 1.30 atm (atmospheres) to kPa (kilopascals), use the conversion factor:1 atm=101.325 kPa1\ \text{atm} = 101.325\ \text{kPa}1 atm=101.325 kPa
So,1.30 atm×101.325 kPaatm=131.7225 kPa1.30\ \text{atm} \times 101.325\ \frac{\text{kPa}}{\text{atm}} = 131.7225\ \text{kPa}1.30 atm×101.325 atmkPa=131.7225 kPa
Answer:1.30 atm=131.72 kPa(rounded to two decimal places)1.30\ \text{atm} = \boxed{131.72\ \text{kPa}} \quad \text{(rounded to two decimal places)}1.30 atm=131.72 kPa(rounded to two decimal places)
Explanation:
Pressure is defined as the force exerted per unit area. There are several units used to measure pressure, including atmospheres (atm), pascals (Pa), millimeters of mercury (mmHg), and kilopascals (kPa). Each unit is useful in different contexts, but it is often necessary to convert between them to compare values or solve scientific problems.
In this case, the pressure is initially given in atmospheres (atm), a unit commonly used in chemistry and physics to describe gas pressure. However, kilopascals (kPa) are part of the SI (International System of Units) and are preferred in scientific calculations because they relate directly to the base unit of pressure, the pascal. One kilopascal equals 1,000 pascals.
The conversion factor between atmospheres and kilopascals is based on standard atmospheric pressure, which is defined as:1 atm=101,325 Pa=101.325 kPa1\ \text{atm} = 101,325\ \text{Pa} = 101.325\ \text{kPa}1 atm=101,325 Pa=101.325 kPa
To convert from atm to kPa, multiply the number of atmospheres by this conversion factor. This gives a direct conversion to kPa. In this example, 1.30 atm is multiplied by 101.325, resulting in approximately 131.72 kPa. This process ensures accurate representation of the pressure in SI units, which is essential for consistency in scientific measurement and calculation.
