Chemical Thermodynamics Question 142
Question: At 300 K, the reactions which have following values of thermodynamic parameters occur spontaneously [Roorkee 1999]
Options:
A) $ \Delta G^{o}=-400kJmo{{l}^{-1}} $
B) $ \Delta H^{o}=200kJmo{{l}^{-1}},,\Delta S^{o}=-4J{{K}^{-1}}mo{{l}^{-1}} $
C) $ \Delta H^{o}=-200,kJ,mo{{l}^{-1}},\Delta S^{o}=4,J{{K}^{-1}}mo{{l}^{-1}} $
D) $ \Delta H^{o}=200,J,mo{{l}^{-1}},\Delta S^{o}=40,J{{K}^{-1}}mo{{l}^{-1}} $
Show Answer
Answer:
Correct Answer: A
Solution:
When $ \Delta H=+ve $ and $ \Delta S=-ve $ than the reaction is non-spontaneous.
