Question

The SI unit of universal gas constant (R) is

• A. Watt K^-1 mol^-1
• B. Newton K^-1 mol^-1
• C. Joule K^-1 mol^-1
• D. Erg K^-1 mol^-1

Answer 1

The correct option is C Joule K^-1 mol^-1

PV = nRT $\Rightarrow$ R = $\frac{\text{PV}}{\text{nT}}$ = $\frac{\text{Joule}}{\text{mole}\times \text{Kelvin}}=J{K}^{-1}mo{l}^{-1}$