What is the Ideal gas law?

1 Answer
Mar 4, 2018

The ideal gas law states that PV=nRT.

Explanation:

The ideal gas law gives the relationship between a substance's mass, volume, its current temperature, the amount of moles of the substance, and the pressure it is currently in, by a simple equation.

In my words, I would say that it says that:

The product of the pressure and volume of a substance is directly proportional to the product of number of moles and the temperature of the substance.

For the symbols:

P is the pressure (usually measured in "kPa")

V is the volume (usually measured in "L")

n is the amount of moles

R is the ideal gas constant (usually use R=8.314* \ "L" \ "kPa" \ "mol"^-1 \ "K"^-1)

T is the temperature (usually measured in "K")

Note that no ideal gases are found to exist, but we can still use this equation for real-life gases, as they behave like ideal gas at low pressure and temperatures. But remember that, in real life, no gas will perfectly obey the ideal gas law.