Which of the following processes will never be a spontaneous process?

  • A
    $2O_3 \rightarrow 3O_2, \Delta H = \text{negative}, \Delta S = \text{positive}$
  • B
    $Mg + H_2 \rightarrow MgH_2, \Delta H = \text{negative}, \Delta S = \text{negative}$
  • C
    $Br_2(l) \rightarrow Br_2(g), \Delta H = \text{positive}, \Delta S = \text{positive}$
  • D
    $2Ag + 3N_2 \rightarrow 2AgN_3, \Delta H = \text{positive}, \Delta S = \text{negative}$

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