The correct option is C J K ^ 1 mol ^ 1 We know, Δ S= q T where, q= required heat per mol T= constant absolute temperature.Unit of entro ...

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Entropy

Unit of entro...

Question

Unit of entropy is:

J K^{- 1} {m o l}^{- 1}

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J {m o l}^{- 1}

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J^{- 1} K^{- 1} {m o l}^{- 1}

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J K {m o l}^{- 1}

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Solution

The correct option is C $J K^{- 1} {m o l}^{- 1}$
We know,
$Δ S = \frac{q}{T}$

where,
$q =$ required heat per mol
$T =$ constant absolute temperature.
Unit of entropy is $J K^{- 1} {m o l}^{- 1}$ .

Hence, the correct option is $A$

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Q. Assertion :The SI unit of entropy is

{J K}^{- 1} {m o l}^{- 1}

. Reason:

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The standard molar entropy of $H_{2} O$ (1) is 70 $J K^{- 1}$ $m o l^{- 1}$ . Will the standard molar entropy of $H_{2} O$ (s) be more, or less than 70 $J K^{- 1}$ $m o l^{- 1}$ ?

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Unit of entropy is:

The correct option is C JK−1mol−1We know,ΔS=qTwhere,q= required heat per molT= constant absolute temperature.Unit of entropy is JK−1mol−1.Hence, the correct option is A

The correct option is C $J K^{- 1} {m o l}^{- 1}$
We know,
$Δ S = \frac{q}{T}$

where,
$q =$ required heat per mol
$T =$ constant absolute temperature.
Unit of entropy is $J K^{- 1} {m o l}^{- 1}$ .

Hence, the correct option is $A$