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Thermodynamics
Question
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Identify the correct statement regarding a spontaneous process –

  • For a spontaneous process in an isolated system, the change in entropy is positive

  • Endothermic processes are never spontaneous

  • Exothermic processes are always spontaneous

  • Lowering of energy in the reaction process is the only criterion for spontaneity

Answer

A.

For a spontaneous process in an isolated system, the change in entropy is positive

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