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(B) Physical adsorption (physisorption) is an exothermic process, so it is favoured at low temperatures according to Le Chatelier's principle.High sur

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$I, II$ & $V$ only

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(B) Physical adsorption (physisorption) is an exothermic process, so it is favoured at low temperatures according to Le Chatelier's principle.High surface area of the adsorbent provides more active sites for the accumulation of adsorbate molecules.High pressure increases the concentration of gas molecules on the surface of the adsorbent, thereby increasing the extent of adsorption.Therefore, factors $(I)$, $(II)$, and $(V)$ favour physical adsorption.

Identify the factors which favour the physical adsorption from the following.
$(I)$ High surface area
$(II)$ Low temperatures
$(III)$ High temperatures
$(IV)$ Low pressures
$(V)$ High pressures

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Which among the following statements is false?

Assertion : The enthalpy of physisorption is greater than chemisorption.
Reason : Molecules of adsorbate and adsorbent are held by van der Waal's forces in physisorption and by chemical bonds in chemisorption.

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Identify the factors which favour the physical adsorption from the following.$(I)$ High surface area$(II)$ Low temperatures$(III)$ High temperatures$(IV)$ Low pressures$(V)$ High pressures