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JEE Main2007ChemistryThermodynamics (C)Actual

Identify the correct statement regarding a spontaneous process

Options

  1. AFor a spontaneous process in an isolated system, the change in entropy is positive
  2. BEndothermic processes are never spontaneous
  3. CExothermic processes are always spontaneous
  4. DLowering of energy in the reaction process is the only criterion for spontaneity

Correct answer

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

Step-by-step solution

For a spontaneous process in an isolated system, the change in entropy is positive. Hence, (A) is correct.

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