The critical temperatures of O 2, N 2, H 2 and CO 2 and 154.3 K, 126 K , 33.2 K and 304 K. The extent of adsorption on tungsten may be highest in case of

Question

The critical temperatures of O 2, N 2, H 2 and CO 2 and 154.3 K, 126 K , 33.2 K and 304 K. The extent of adsorption on tungsten may be highest in case of (A) H 2 (B) N 2 (C) O 2 (D) CO 2

Tardigrade Admin · Accepted Answer

More easily liquefiable gases, (i.e., higher critical temperature) are readily adsorbed, as van der Waals forces are stronger near the critical temperatures. So, adsorption of CO 2 will be highest.

Q. The critical temperatures of $O_{2}, N_{2}, H_{2}$ and $C O_{2}$ and $154.3 K$ , $126 K, 33.2 K$ and $304 K$ . The extent of adsorption on tungsten may be highest in case of

$H_{2}$

$N_{2}$

$O_{2}$

$C O_{2}$

More easily liquefiable gases, (i.e., higher critical temperature) are readily adsorbed, as van der Waals forces are stronger near the critical temperatures. So, adsorption of $C O_{2}$ will be highest.

Q. The critical temperatures of O2​,N2​,H2​ and CO2​ and 154.3K, 126K,33.2K and 304K. The extent of adsorption on tungsten may be highest in case of

H2​

N2​

O2​

CO2​