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For which of the following reactions , D...

For which of the following reactions , `Delta S gt 0` ?

A

`H_(2) (g) + I_(2) (g) hArr 2 HI (g)`

B

`HCl (g) + NH_(3) (g) hArr NH_(4) Cl (s)`

C

`NH_(4) NO_(3) (s) hArr NO_(2) (g) + 2H_(2)O (g)`

D

`MgO(s) + H_(2) (g) hArr Mg(s) + H_(2)O (g)`

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