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AP EAMCET · Chemistry · Surface Chemistry

The critical temperature of A. B. C. D gases are \(190 \mathrm{~K}, 630\) \(\mathrm{K}, 261 \mathrm{~K}, 400 \mathrm{~K}\) respectively. The quantity of gas adsorbed per gram of charcoal at same pressure is least for the gas

  1. A D
  2. B C
  3. C B
  4. D A
Verified Solution

Answer & Solution

Correct Answer

(D) A

Step-by-step Solution

Detailed explanation

According to the graph of Freundlich adsorption isotherm. There curves indicate that at fixed pressure, there is a decrease in physical adsorption with increase in temperature. The extent of adsorption decreases with increase of temperature so, B > D > C > A A have least…