MCQ
The unit of ebulioscopic constant is $.......$
  • $\ce{K \ kg\ mol^{-1}}$ or $\ce{K(molality)^{-1}}$
  • B
    $\ce{mol kg K^{-1}}$ or $\ce{K^{-1}(molality)}$
  • C
    $\ce{kg mol^{-1} K^{-1}}$ or $\ce{K^{-1}(molality)^{-1}}$
  • D
    $\ce{K mol kg^{-1}}$ or $\ce{K(molality)}$

Answer

Correct option: A.
$\ce{K \ kg\ mol^{-1}}$ or $\ce{K(molality)^{-1}}$
$\text{K}_{\text{b}}=\frac{\Delta\text{T}_{\text{b}}}{\text{m}}=\frac{\text{K}}{\text{mol kg}^{-1}}$ or $\text{K}\text{(molality)}^{-1}$
The unit of ebullioscopic constant is $\ce{K kg mol^{-1}}$ or $\ce{K molality^{-1}}$

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