Home Physics Units, Dimensions and Measurement Mix The SI unit of universal gas constant (R) is
Physics Units, Dimensions and Measurement Mix Single Correct MCQ
Published on: September 12, 2026

The SI unit of universal gas constant (R) is

A
\(Watt\,K^{-1}\,mol^{-1}\)
B
\(Newton\ \mathrm{k}^{-1}\ \mathrm{mol}^{-1}\)
C
\(Joule \mathrm{K}^{-1} \, \mathrm{mol}^{-1}\)
D
\(\mathrm{Erg\,K^{-1}\,mol^{-1}}\)

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Text Solution

Verified by Experts
The correct answer is:
C

\(PV = nRT \implies R = \frac{PV}{nT} = \frac{Joule}{mole \times Kelvin} = JK^{-1}mol^{-1}\)

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