Ideal gas law — Science definition
The equation PV = nRT, which relates the pressure, volume, moles, and Kelvin temperature of a gas in a single snapshot.
Where it is taught
- The Ideal Gas Law — States of Matter & Gases, Physical Science: Chemistry, Grade 11
In use
The ideal gas law closes that gap by adding the amount of gas, in moles, right into the equation.
The Ideal Gas Law
Questions using ideal gas law
Problem 1
In the ideal gas law PV = nRT, what does n represent?
- the mass in grams
- the number of collisions
- the number of moles of gas
- the number of neutrons
Answer and explanation
the number of moles of gas
n is the amount of gas measured in moles.
Problem 2
Which equation is the ideal gas law?
- PV = RT
- PV = nRT
- P = mV
- V = nRT
Answer and explanation
PV = nRT
The ideal gas law is PV = nRT.