In equations for ideal gas and thermodynamics , what is the difference between 'R' and 'r' .
Value of R is a constant for all gases while value of r is a variable for all gases but a constant for a specific gas.
Explanation:
Starting with the Ideal gas equation,PV = nRT.
R in the above equation stands for Universal Gas Constant whose value is a constant 8.314 J/mol-K for all gases.
However, when we put n = M/m where M represents total mass of gas present and m the molar mass of the gas.
The value of R/m = r or r = R/m is defined as the specific gas constant for a gas. Clearly, r is a...