19. Rate of physisorption increases with
(1) decrease in temperature (2) increase in temperature
(3) decrease in pressure (4) decrease in surface area
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Answers
Answer:
(1) decrease in temperature
Physisorption is exothermic in nature. Therefore in accordance with Le-Chatliers principle, it decreases with increase in temperature. This means physisorption occurs at a low temperature more readily.
Explanation:
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Answer:
A). the decrease in temperature
Explanation:
It is an exothermic process.
An exothermic process is changes of state that involves a solid melting, a liquid freezing, a liquid boiling or a gas condensing. When steam, which is gaseous water, condenses, heat is released. Likewise when liquid water freezes, heat is given off. In fact heat must be continually removed from the freezing water or the freezing process will stop. Our experience makes it easy for us to realize that to boil water or any liquid and thereby convert into a gas, heat is required and the process is endothermic. It is less intuitive to grasp that when a gas condenses to a liquid, heat is given off and the process is exothermic.
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