The total entropy change for a system and its surroundings increases, if the process is:

Reversible

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Irreversible

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Exothermic

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Endothermic

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Solution

The correct option is B Irreversible
According to second law of Thermodynamics, for a spontaneous process, the total entropy change for a system and its surroundings increases.
And, all irreversible processes are spontaneous. Whereas, as we have already seen both endothermic and exothermic processes can be spontaneous

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