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The graph given below is showing the relation between the extent of adsorption $(\mathrm{x} / \mathrm{m})$ and Pressure at different temperatures. The correct order of temperatures for curves $\mathrm{i}$, ii and iii is

ChemistrySurface ChemistryTS EAMCETTS EAMCET 2023 (13 May Shift 1)
Options:
  • A $\mathrm{T}_4>\mathrm{T}_2>\mathrm{T}_3$
  • B $\mathrm{T}_4>\mathrm{T}_3>\mathrm{T}_2$
  • C $\mathrm{T}_2>\mathrm{T}_3>\mathrm{T}_4$
  • D $\mathrm{T}_2>\mathrm{T}_4>\mathrm{T}_3$
Solution:
2549 Upvotes Verified Answer
The correct answer is: $\mathrm{T}_4>\mathrm{T}_3>\mathrm{T}_2$
From the graph it is obvious that the extent of adsorption $(\mathrm{x} / \mathrm{m})$ follows the order $\mathrm{T}_2>\mathrm{T}_3>\mathrm{T}_4$.
The extent of physisorption decreases with an increase in temperature.
Thus, $\mathrm{T}_4>\mathrm{T}_3>\mathrm{T}_2$.

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