MCQ
The reverse of a spontaneous reaction is ....... :
- Aalways spontaneous
- Balways non spontaneous
- Csometimes spontaneous
- DThere is no way of telling
✓
Answer
- always non spontaneous
Explanation:
The revere of a spontaneous reaction is always non-spontaneous.
According to the second law of thermodynamics, a reaction is spontaneous if the overall entropy or disorder increases.
If we go back to our cleaning the house analogy, when our home becomes messy, then the entropy increases.
The mess that accumulates is a spontaneous reaction, and as a result, the entropy increases.
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