Question

The relationship between universal gas constant (ru) and the characteristic gas constant (rc) is

Answer 1

What is the difference between Universal Gas Constant and Characteristic Gas Constant?
Universal Gas Constant vs Characteristic Gas Constant
Universal gas constant is only applied for an ideal gas.
Characteristic gas constant is applied for a real gas.
Calculation
Universal gas constant is calculated using standard temperature and pressure (STP) values.
Characteristic gas constant is calculated with STP values along with the molar mass of the real gas.
Relationship with the Gas
Universal gas constant is independent of the gas taken.
Characteristic gas constant is dependent on the gas.
Value
The value of universal gas constant is 0.082057 L/(K.mol).
The value for characteristic gas constant will always depend on the gas.

Answer 2

Rc=Ru/Molecular weight