JEE · NEET Previous Year Question
Which one of the following characteristics is not correct for physical adsorption?
Topic: JEE PYQ
Answer: B. Full step-by-step solution below.
- AAdsorption on solids is reversible
- BAdsorption increases with increase in temperature
- CAdsorption is spontaneous
- DBoth enthalpy and entropy of adsorption are negative.
Correct answer: B
Solution
(b) Since the physical adsorption process is exothermic, the physical adsorption occurs readily at low temperature and decreases with increasing temperature. (Le Chatelier’s principle).More Surface Chemistry PYQs
- For a linear plot of log(x/m) versus log p in a Freundlich adsorption isotherm, which of the following statements is correct? (k a…
- A sol of AgI is prepared by mixing equal volumes of and , which of the following statemen…
- 20 mL of 0.5 M NaCl is required to coagulate 200 mL of solution in 2 hours. The coagulating value…
- Which of the following salt solutions would coagulate the colloid solution formed when is added to NaOH solution, at th…
- Which one of the following is correct for the adsorption of a gas at a given temperature on a solid surface?