Identify the reaction/process in which the entropy decreases.

  • A
    $H_2O(l) \longrightarrow H_2O(s)$
  • B
    $H_2O(l) \longrightarrow H_2O(g)$
  • C
    $H_2O(g) \longrightarrow 2H(g) + O(g)$
  • D
    Crystal $(100 \ K)$ $\longrightarrow$ Crystal $(200 \ K)$

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