I think there might be some typos in the latter half of your post but you might want to have a look at this:
The Ideal Gas Equation
What does the 'gas constant' part mean'?
It doesn't really "mean" anything - FWIW the very simple answer is it's a number that you plug into an equation to make the sums/units work and if push comes to shove that really is all you need to know .... If you insist
then in more detail it what's known as a "constant of proportionality", simply speaking a number that allows you to stop using the phrase/symbol "is proportional to" in the algebra and instead actually use an equals sign (and hence do arithmetic calculations).
One simple example of this is good old "pi" (3.14159............ etc).
We know that as a circle's diameter gets larger then so does it's circumference, or in other words
circumference c is proportional to diameter, d.
That doesn't allow us to do any numeric calculations.
However once we know that the constant of proportionality is 3.14159..., or pi
, we can change the "is proportional to " to "pi" and rewrite the equation as
c= pi X d
and actually do some meaningful sums.