Question
Chemistry Question on Spontaneity
| Match List I with List IIList I | List II |
|---|---|
| A | Physisorption |
| B | Chemisorption |
| C | N 2(g)+3 H 2(g)—⇢ Fe(s)—⇢2 NH 3(g) |
| D | Analytical Application or Adsorption |
| Choose the correct answer from the options given below: |
A
A - III, B - IV, C - I, D - II
B
A - II, B - III, C - I, D - IV
C
A - II, B - I, C - IV, D - III
D
A - IV, B - II, C - III, D - I
Answer
A - II, B - I, C - IV, D - III
Explanation
Solution
(A) Physisorption =20-40 kJ/mol and Chemisorption = 80-240 kJ/mol
(B) Physisorption is multi-layered and chemisorption is unimolecular layered.
(C) In heterogeneous catalysis, medium and catalyst are in different phases.
(D) Chromatography uses adsorption to purify/separate mixtures
So , the correct option is (C) : A - II, B - I, C - IV, D - III