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For the process of adsorption, which of the following statements is correct in terms of thermodynamics?

Option: 1

H is always positive


Option: 2

S is always positive


Option: 3

G is always negative

 


Option: 4

G is always positive


Answers (1)

best_answer

The Gibbs free energy change ( \Delta G) is a measure of the spontaneity of a process. For adsorption to occur, the \Delta G value must be negative, indicating that the process is spontaneous. 

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Pankaj Sanodiya

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