What is the purpose of the gas constant in Pv=nRT?

Question

That is the R value

Answer 1

This equation combines the law of gases.

Also, it helps to find several things without STP (mole house).

This is not detailed but if u are aware of STP then u'd knw...

Answer 2

R is the constant of proportionality in the formula for P in terms of n, V and T.

Or we can say that the slope of the graph of PV vs nT is R.

R = PV / nT

Answer 3

to get the units right too.