During the occurrence of spontaneous process, free energy

During the Occurance of spontaneous process, free energy-

For spontaneous process:

For a spontaneous process,

Spontaneous process is:

For a spontaneous process.

For a spontaneous process :-

select the correct statement (s) : adsorption is a non - spontaneous process, surface energy deceases during the process of adsorption, adsorption takes place with decrease of entropy, in general adsorption is exothermic process.

Statement: The thermodynamics functions which determines the spontaneity of a process is the free energy. For a process to be spontaneous, the change in free energy must be negative. Explanation:The change in free energy is related to the change in enthalpy and change in entropy. the change in entropy for a process must be always positive if it is spontaneous.