Methylene blue, from its aqueous solution, is adsorbed on activated charcoal at `25^(@)C` . For process, the correct statement i

Methylene blue, from its aqueous solution, is adsorbed on activated charcoal at `25^(@)C` . For process, the correct statement is
A. the adsorption requires activation at `25^(@)`
B. the adsorption us acompanied by a decreases in enthalpy
C. the adsorption increases with increase of temperature
D. the adsorption is irreversible

Methylene blue, from its aqueous solution, is adsorbed on activated charcoal at `25^(@)C` . For process, the correct statement is

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