- AIs reversible
- BIs reversible and endothermic
- CIs exothermic
- ✓Is reversible or irreversible and endothermic or exothermic
All reactions which have chemical disintegration are reversible or irreversible and endothermic or exothermic.
Example of irreversible and exothermic reaction which disintegrates into its following constituents:
$2 KClO _3( S ) \stackrel{\Delta}{\rightarrow} 2 KCl ( S )+3 O _2( g )$
Example of reversible reaction:
$N _2( g )+3 H _2( g ) \rightleftharpoons 2 NH _3( g )$
Example of endothermic reaction:
$HCO _3^{-}+ H ^{+} \rightarrow H _2 O + CO _2$
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$[A]$ The activation energy of the reaction is unaffected by the value of the steric factor
$[B]$ Experimentally determined value of frequency factor is higher than that predicted by Arrhenius equation
$[C]$ Since $P=4.5$, the reaction will not proceed unless an effective catalyst is used
$[D]$ The value of frequency factor predicted by Arrhenius equation is higher than that determined experimentally
$[\Lambda_{\mathrm{H}^{+}}^{\circ}=350 \,\mathrm{~S}\, \mathrm{~cm}^{2}\, \mathrm{~mol}^{-1},\Lambda_{\mathrm{CH}_{3} \mathrm{COO}^{-}}^{\circ}=50\, \mathrm{~S}\, \mathrm{~cm}^{2}\, \mathrm{~mol}^{-1}]$