Value of universal gas constant (R ) is same for all gases. What is its physical significance ?

Value of universal gas constant (R ) is same for all gases. What is it

1.	Value of universal gas constant (R ) is same for all gases. What is its physical significance ?
Answer» Solution :Unit of R depends upon those units in which p, V and T are measured as, `R = (pV)/(nT)`. If pressure is measured in Pascal, per mole volume is measured in `m^(3)` and TEMPERATURE is measured in KELVIN then. Units of .R. are `Pam^(3)K^(-1)mol^(-1)` or `J mol^(-1) K^(-1)`. Since, Joule defines the unit of work done so .R. is work done by the GAS per mole per kelvin.