Question

What is R in the mathematical expression of the ideal gas law?

Answer 1

In the mathematical expression of ideal gas law, R represents the Boltzmann’s constant having value equal to 0.082057 L atm per K per mol

The ideal gas equation is formed using various laws such as Boyle’s law (PV = constant) , Charle’s law (P -> V), and Avogadro’s law (V -> n) resulting in  

PV/T = constant or PV = nRT