Final answer:
A spontaneous process, as per the second law of thermodynamics, occurs naturally and increases the entropy of the universe.
Explanation:
A spontaneous process, as described by the second law of thermodynamics, occurs naturally and involves an increase in the entropy of the universe. When ΔSuniv > 0, the process is considered spontaneous. This principle governs the direction in which processes occur spontaneously without requiring external intervention.
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