Which one of the following indicates the correct value of the gas constant $R$?

  • A
    $1.987 \, cal \, K^{-1} \, mol^{-1}$
  • B
    $8.3 \, cal \, K^{-1} \, mol^{-1}$
  • C
    $0.0821 \, L \, K^{-1} \, mol^{-1}$
  • D
    $1.987 \, J \, K^{-1} \, mol^{-1}$

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