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Q. |
Which of the following statements regarding the physical adsorption of a gas on surface of solid is not correct? |
A. | on increasing temperature, adsorption increases continuously |
B. | enthalpy changes are negative |
C. | adsorption is specific |
D. | it is reversible in nature |
Answer» A. on increasing temperature, adsorption increases continuously | |
Explanation: physisorption is exothermic in nature. therefore according to le chateliars principle, it occurs readily at low temperature and decreases with increase in temperature. |
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