AP EAMCET · Chemistry · Thermodynamics (C)
Identify the incorrect statements from the following
I. \(\quad \Delta \mathrm{S}_{\text {system }}=\left(\Delta \mathrm{S}_{\text {total }}+\Delta \mathrm{S}_{\text {surr. }}\right)\)
II. \(\mathrm{A}(l) \rightarrow \mathrm{A}(\mathrm{s})\) : for this process entropy change decreases
III. Entropy units are \(\mathrm{JK} \mathrm{mol}{ }^{-1}\)
- A I, III only
- B I, II only
- C I, II, III
- D II, III only
Answer & Solution
Correct Answer
(A) I, III only
Step-by-step Solution
Detailed explanation
(I) The total entropy change \(\left(\Delta \mathrm{S}_{\text {total }}\right)\) for the system and surrounding of a spontaneous process is given by \(\Delta \mathrm{S}_{\text {total }}=\Delta \mathrm{S}_{\text {sys }}+\Delta \mathrm{S}_{\text {surr }}\) (II)…
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