Chemical Thermodynamics Question 140
Question: In which of the following conditions a chemical reaction can not occur [AMU 1999]
Options:
A) $ \Delta H $ and $ \Delta S $ increase and $ T\Delta S>\Delta H $
B) $ \Delta H $ and $ \Delta S $ decrease and $ \Delta H>T\Delta S $
C) $ \Delta H $ increases and $ \Delta S $ decreases
D) $ \Delta H $ decreases and $ \Delta S $ increases
Show Answer
Answer:
Correct Answer: C
Solution:
If $ \Delta H=+,ve $ and $ \Delta S=-,ve $ than the reaction is non-spontaneous i.e. can not occur.
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