Q. 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) $Erg\ K^{- 1}mol^{- 1}$
Explanation
$PV = nRT \Rightarrow R = \frac{PV}{nT} = \frac{joule}{mole \times kelvin} = JK^{- 1}mol^{- 1}$
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.