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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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