Which of the following is true with respect to adsorption ?

Options

A. `triangleG lt 0, triangleS gt 0, triangleH lt 0`
B. `triangleG lt 0, triangleS lt 0, triangleH lt 0`
C. `triangleG gt 0, triangleS gt 0, triangleH lt 0`
D. `triangleG lt 0, triangleS gt 0, triangleH gt 0`

Answer

B

Explanation

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