What are the characteristics associated with adsorption?
1. ∆G, ∆H, and ∆S are all negative.
2. ∆G and ∆H are negative, but ∆S is positive.
3. ∆G and ∆S are negative, but ∆H is positive.
4. ∆G is negative, but ∆H and ∆S are positive.
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyA plot of log x/m versus log p for the adsorption of a gas on a solid gives a straight line with slope equal to :
1. log k
2. n
3.
4. log 1/k
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyAccording to the adsorption theory of catalysis, the speed of the reaction increase because:
1. | The concentration of reactant molecules at the active centers of the catalyst becomes high due to adsorption |
2. | In the process of adsorption, the activation energy of the molecules becomes large |
3. | Adsorption produces heat which increases the speed of the reaction |
4. | Adsorption lowers the activation energy of the reaction |
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyWhich is not correct regarding the adsorption of a gas on the surface of solid: -
1. | On increasing temperature adsorption increase continuously |
2. | Enthalpy & entropy change is negative |
3. | Adsorption is more for some specific substance |
4. | Reversible |
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & Biology