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A pascal is a very small amount of pressure, so the most useful unit for everyday gas pressures is the kilopascal \ (\left ( \text {kPa} \right)\). A kilopascal is equal to 1000 pascals. Another commonly used unit of pressure is the atmosphere \ (\left ( \text {atm} \right)\).
Pressure, p. Pressure is measured in pascals, Pa - sometimes expressed as newtons per square metre, N m-2. These mean exactly the same thing. Be careful if you are given pressures in kPa (kilopascals). For example, 150 kPa is 150000 Pa. You must make that conversion before you use the ideal gas equation.
Online calculator to convert pascals to kilopascals (Pa to kPa) with formulas, examples, and tables. Our conversions provide a quick and easy way to convert between Pressure units.
The SI unit of pressure is the pascal (Pa), with 1 Pa = 1 N/m 2, where N is the newton, a unit of force defined as 1 kg m/s 2. One pascal is a small pressure; in many cases, it is more convenient to use units of kilopascal (1 kPa = 1000 Pa) or bar (1 bar = 100,000 Pa).
The SI unit of pressure is the pascal (Pa), with 1 Pa = 1 N/m 2, where N is the newton, a unit of force defined as 1 kg m/s 2. One pascal is a small pressure; in many cases, it is more convenient to use units of kilopascal (1 kPa = 1000 Pa) or bar (1 bar = 100,000 Pa).
Learning Objective. To describe and measure the pressure of a gas. At the macroscopic level, a complete physical description of a sample of a gas requires four quantities: temperature (expressed in kelvins), volume (expressed in liters), amount (expressed in moles), and pressure (in atmospheres).
The SI unit of pressure is the pascal, with 1 Pa = 1 N/m 2, where N is the newton, a unit of force defined as 1 kg m/s 2. One pascal is a small pressure; in many cases, it is more convenient to use units of kilopascal (1 kPa = 1000 Pa) or bar (1 bar = 100,000 Pa).
