In SI units, the gas constant R is expressed as ____
Correct answer C. N m K⁻¹ mol⁻¹
Explanation
From R = PV/nT, SI units are (N m⁻² × m³) ÷ (K × mol) = N m K⁻¹ mol⁻¹, which is the same as J K⁻¹ mol⁻¹.
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