Which of the following is true with respect to adsorption ?

Options

A. `Delta G lt 0, Delta S gt 0, Delta H lt 0`
B. `Delta G lt 0, Delta S lt 0, Delta H lt 0`
C. `Delta G gt 0, Delta S lt 0, Delta H lt 0`
D. `Delta G gt 0,Delta S gt 0, Delta H gt 0`

Answer

B

Explanation

For successful adsorption `Delta G = -ve` (spontaneous) `Delta S = -ve ` and `Delta H` = -ve (exothermic)