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Get Answers to all your Questions
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- Give answer! Identify the correct statement regarding a spontaneous process:
Identify the correct statement regarding a spontaneous process:
- Option 1)
Lowering of energy in the reaction process is the only criterion for spontaneity.
- Option 2)
For a spontaneous process in an isolated system, the change in entropy is positive.
- Option 3)
Endothermic processes are never spontaneous.
- Option 4)
Exothermic processes are always spontaneous.
Answers (1)
As we learnt in
Spontanous process -
- wherein
For spontanouse process must be negative.
Spontaneity of reaction depends on tendency to acquire minimum energy state and maximum randomness. For a spontaneous process in an isolated system, the change in entropy is positive.
Option 1)
Lowering of energy in the reaction process is the only criterion for spontaneity.
This option is incorrect.
Option 2)
For a spontaneous process in an isolated system, the change in entropy is positive.
This option is correct.
Option 3)
Endothermic processes are never spontaneous.
This option is incorrect.
Option 4)
Exothermic processes are always spontaneous.
This option is incorrect.
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