Question

Identify the correct statement regarding a spontaneous process

• A. For a spontaneous process in an isolated system, the change in entropy is positive
• B. Endothermic processes are never spontaneous
• C. Exothermic processes are always spontaneous
• D. Lowering of energy in the reaction process is the only criterion for spontaneity

Answer 1

Answer: (A)

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