Which of the following is true in respect of chemical adsorption?

  • A
    $\Delta H < 0, \Delta S > 0, \Delta G > 0$
  • B
    $\Delta H < 0, \Delta S < 0, \Delta G < 0$
  • C
    $\Delta H < 0, \Delta S > 0, \Delta G < 0$
  • D
    $\Delta H < 0, \Delta S < 0, \Delta G > 0$

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Similar Questions

Assertion $(A)$: van der Waals' forces are responsible for chemisorption.
Reason $(R)$: High temperature is favourable for chemisorption.
The correct answer is

Why does the white precipitate of silver halide become coloured in the presence of dye eosin?

The volumes of gases $H_2, CH_4, CO_2$ and $NH_3$ adsorbed by $1 \ g$ of charcoal at $288 \ K$ are in the order:

Given below are the critical temperatures of some of the gases:
Gas Critical temperature $(K)$
$He$ $5.2$
$CH_{4}$ $190$
$CO_{2}$ $304.2$
$NH_{3}$ $405.5$

The gas showing least adsorption on a definite amount of charcoal is:

Which of the following is correct for Freundlich adsorption isotherm?

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