Question:
Identify the correct statements from the following:
I) In adsorption process, both enthalpy and entropy decrease.
II) In general, physisorption is an irreversible process.
III) The catalyst used in the decomposition of potassium chlorate is manganese dioxide.
Identify the correct statements from the following:
I) In adsorption process, both enthalpy and entropy decrease.
II) In general, physisorption is an irreversible process.
III) The catalyst used in the decomposition of potassium chlorate is manganese dioxide.
I) In adsorption process, both enthalpy and entropy decrease.
II) In general, physisorption is an irreversible process.
III) The catalyst used in the decomposition of potassium chlorate is manganese dioxide.
Show Hint
Catalysts do not alter equilibrium, only the rate. Physisorption is generally reversible.
Updated On: Jun 3, 2025
- I, II, III
- I, II only
- I, III only
- II, III only
Hide Solution
Verified By Collegedunia
The Correct Option is C
Solution and Explanation
In adsorption, the process is exothermic and leads to decreased entropy (randomness).
Manganese dioxide is used as catalyst in decomposition of KClO$_3$. However, physisorption is usually reversible, not irreversible.
Was this answer helpful?
0
0
Top Questions on Surface Chemistry
- In a Freundlich adsorption isotherm, if the slope is unity and k is 0.1, the extent of adsorption at 2 atm is (log 2 = 0.30)
- AP EAPCET - 2025
- Chemistry
- Surface Chemistry
- Adsorption of a gas on solids follows the Freundlich adsorption isotherm. The graph drawn between log $\frac{x}{m}$ (on the y-axis) and log \( p \) (on the x-axis) is a straight line with a slope equal to 3 and an intercept equal to 0.30. What is the value of $\frac{x}{m}$ at a pressure of 2 atm?
(Given: log 2 = 0.3)- AP EAPCET - 2025
- Chemistry
- Surface Chemistry
Match the following
- AP EAPCET - 2025
- Chemistry
- Surface Chemistry
- Identify the catalytic reaction in which both reactants are in different phases.
- AP EAPCET - 2025
- Chemistry
- Surface Chemistry
- Identify the correct statements from the following (only one):
I) Sulphur sol is an example of multimolecular colloid.
II) Starch sol is an example of associated colloid.
III) Artificial rubber is an example of macromolecular colloid.- AP EAPCET - 2025
- Chemistry
- Surface Chemistry
View More Questions
Questions Asked in AP EAPCET exam
$\left( 1 + \sqrt{5} + i \sqrt{10 - 2\sqrt{5}} \right)^5$
- AP EAPCET - 2025
- Complex numbers
- If $(\sqrt{3} - i)^n = 2^n$, $n \in \mathbb{N}$, then the least possible value of $n$ is
- AP EAPCET - 2025
- Complex numbers
- If the point $P$ denotes the complex number $z = x + iy$ in the Argand plane and $\frac{z - (2 - i)}{z + (1 + 2i)}$ is purely imaginary, then the locus of $P$ is
- AP EAPCET - 2025
- Complex numbers
- Consider two systems of 3 linear equations in 3 unknowns $AX = B$ and $CX = D$. If $AX = B$ has the unique solution $X = D$ and $CX = D$ has the unique solution $X = B$, then the solution of $(A - C^{-1})X = 0$ is
- AP EAPCET - 2025
- Matrices
- $f(x)$ is an $n^{th}$ degree polynomial satisfying $f(x) = \frac{1}{2}\left[f(x)f\left(\frac{1}{x}\right) + f\left(\frac{f(x)}{x}\right)\right]$. If $f(2) = 33$, then the value of $f(3)$ is
- AP EAPCET - 2025
- Polynomials
View More Questions
