MCQ
Select the process in which least enthalpy change is associated :
- A$O_{(g)} \to O^+_{(g)}$
- ✓$O_{(g)} \to O^-_{(g)}$
- C$O^+_{(g)} \to O^{2+}_{(g)}$
- D$S_{(g)} \to S^-_{(g)}$
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$A.$ $I _2( g ) \rightarrow 2 I ( g )$
$B.$ $HCl ( g ) \rightarrow H ( g )+ Cl ( g )$
$C.$ $H _2 O ( l ) \rightarrow H _2 O ( g )$
$D.$ $C ( s )+ O _2( g ) \rightarrow CO _2( g )$
$E.$ Dissolution of ammonium chloride in water