NEET Solved Paper 2016 Question 5
Question: Which one of the following characteristics is associated with adsorption?
Options:
A) $ \Delta G $ is negative but $ \Delta H $ and $ \Delta S $ are positive
B) $ \Delta G,\Delta H $ and $ \Delta S $ all are negative
C) $ \Delta G $ and $ \Delta H $ are negative but $ \Delta S $ is positive
D) $ \Delta G $ and $ \Delta S $ are negative but $ \Delta H $ is positive
Show Answer
Answer:
Correct Answer: B
Solution:
- Adsorption is spontaneous process, so $ \Delta G $ = negative Adsorption is exothermic process, so $ \Delta H $ = negative In adsorpiton entropy decreases, so $ \Delta S $ = negative so $ \Delta G,\Delta H $ and $ \Delta S $ all are negative
