Concept:Reversibility in a chemical reaction fundamentally requires that the newly formed products have enough energy and reactivity to interact and reform the original reactants.
Solution:- In an irreversible reaction, products are highly stable and do not interact to go backwards.
- In a reversible reaction (\( A + B \rightleftharpoons C + D \)), the products (\( C \) and \( D \)) are reactive enough to collide and successfully overcome the reverse activation energy barrier.
- Therefore, the reactivity of the products allows the backward reaction to occur simultaneously with the forward one.
Why other options are incorrect:If products were stable (Option D), they wouldn't react to go backward. Reactant reactivity (Option A) drives the forward reaction, but does not dictate reversibility.
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