Final answer:
A conjugated system increases the stability of a molecule by allowing the delocalization of electrons along the system, resulting in a more even distribution of charge and a decrease in overall electronic energy.
Step-by-step explanation:
A conjugated system refers to a system of alternating single and multiple bonds in a molecule, typically involving a series of carbon-carbon double bonds. Conjugation can have a significant impact on the stability of a molecule. It increases the stability of a molecule by allowing the delocalization of electrons along the system, which results in a more even distribution of charge and a decrease in overall electronic energy. This can make the molecule less reactive and more resistant to chemical reactions.