The formula equation that shows a reversible reaction is
NH4Cl (s) ⇔ NH3 (g) + HCl (g) ( answer C)
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<em> </em><u><em> Explanation</em></u>
Reversible reaction is a chemical reaction where the reactants form products , where in turn react together to form reactant back.
The reaction of NH4Cl (s)⇔ NH3(g) + HCl (g) is a reversible reaction since NH4Cl decompose to form NH3 and HCl which in turn react together to form NH4Cl back .
Calorimetry-the science or act of measuring changes in state variables of a body for the purpose of deriving heat transfer associated with changes of its due date.
