MCQ
For which reaction from the following, $\Delta S$ will be maximum
  • A
    $Ca(s) + \frac{1}{2}{O_2}(g) \to CaO(s)$
  • $CaC{O_3}(s) \to CaO(s) + C{O_2}(g)$
  • C
    $C(s) + {O_2}(g) \to C{O_2}(g)$
  • D
    ${N_2}(g) + {O_2}(g) \to 2NO(g)$

Answer

Correct option: B.
$CaC{O_3}(s) \to CaO(s) + C{O_2}(g)$
(b)Solid $\xrightarrow{{}}$  Gas, $\Delta S$  is maximum.

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