What is the Ideal Gas Law?

Question

The ideal gas law is a combination of laws into an equation that can be used to understand how gases behave.

Answer 1

The idea gas law is just what you said it is. It is derived from other "equations" that are used to describe the various behaviors of gases in an ideal situation.

The ideal gas law is PV = nRT

where P = pressure

V = volume (in liters)

n = moles

R = the gas constant (several values depending on the units of pressure being used)

T = temperature in Kelvin

Answer 2

The ideal gas law is

PV = nRT

where

P = pressure

V = volume

n = number of moles of gas

R = universal gas constant

T = absolute temperature of the gas

you could write like an entire dissertation about its applications haha, but it shows up in a lot of contexts like engineering, meteorology, fluid mechanics, etc.