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Pressure, Gas Laws, & The Ideal Gas Equation
- Pressure is defined as Force per Area, and its SI unit is the Pascal
- Ideal Gas Law: PV = nRT. This equation expresses a relationship among the various measureable quantities of a given gas sample. It might better be written as PV/nT = R.
- In other words, given a sample of gas, its Pressure times the volume it occupies divided by the number of mols of gas times its Kelvin temperature is equal to a Constant.
- When some mathematical arrangement of parameters is equal to a constant, this is profoundly important.
- R is the Gas Constant: 0.08306 Liter-Atmosphere/Mol-Kelvin
- Units used must match the units of R.
- Standard Temperature and Pressure (STP) is 0 K and 1 atm.
Pressure, Gas Laws, & The Ideal Gas Equation
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