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why the freedom of gas is restricted when it is adsorbed.?and why delta h becomes less and less negative during adsorption process
From dG = dH – TdSmolecules looses degree of freedom.but entropy of adsorption is negative,enthalpy change is negative and the processis exothermic.
@ adyasha actually adsorption means the gas particle will be stick to the solid surface due to the uneven distribution of the particle in the solid state , and for that the solid surface will exert a force , and due to the low intermolecular attraction between the particles of gas , they will not tend to remove from the surface and they will be remain attached their . due to that their freedom of movement will be restricted . and the process is exothermic due to liberation of heat when the gaseous particle will attach in the surface of solid adsorbate . HOPE IT CLEARS YOU ALL THE BEST ..
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