Thermodynamics PYQs Set 14 (PDF)

Set 14 of 14 · Questions 391-393 of 393

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Mere Teacher · Previous Year Questions NEET Chemistry · Thermodynamics · Set 14 (Q391-393)
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391. $Which of the following expressions regarding entropy is not correct?$ (1) $∆ s_{sy s t e m} = \frac{q}{T}$ (2) $Δ s_{system} = Δ s_{total} + Δ s_{surrouding}$ (3) $Δ s = S_{final} - S_{initial}$ (4) $Δ s_{total} = Δ s_{system} + Δ s_{surrounding}$ 392. $When a liquid boils, there is$ (1) $An increase in entropy$ (2) $A decrease in entropy$ (3) $An increase in heat of vaporization$ (4) $An increase in free energy$ 393. $The unit of entropy is$ (1) $J m o l^{- 1}$ (2) $J K m o l^{- 1}$ (3) $J m o l^{- 1} K^{- 1}$ (4) $J^{- 1} K^{- 1} m o l^{1}$