MCQ
For a spontaneous process, the correct statement is
- AEntropy of the system always increases
- BFree energy of the system always increases
- CTotal entropy change is always negative
- ✓Total entropy change is always positive
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$(A)$ $O _2$ is physisorbed
$(B)$ heat is released
$(C)$ occupancy of $\pi_{2 p }^*$ of $O _2$ is increased
$(D)$ bond length of $O _2$ is increased
$A+B\xrightarrow{K}C$:
$P\;,\;Q\;,\;R$
$O ^{2-}, F ^{-}, Al , Mg ^{2+}, Na ^{+}, O ^{+}, Mg , Al ^{3+}, F$
