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(C) The extent of adsorption of a gas on a solid adsorbent like charcoal is directly proportional to its critical temperature $(T_c)$.This is because

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(C) The extent of adsorption of a gas on a solid adsorbent like charcoal is directly proportional to its critical temperature $(T_c)$.This is because gases with higher critical temperatures are more easily liquefiable and have stronger van der Waals forces of attraction,leading to greater adsorption.Comparing the given critical temperatures:$A = 304 \ K$$B = 630 \ K$$C = 200 \ K$$D = 540 \ K$Since gas $C$ has the lowest critical temperature $(200 \ K)$,it will show the least adsorption on a definite amount of charcoal.

Gas	Critical Temperature
$A$	$304 \ K$
$B$	$630 \ K$
$C$	$200 \ K$
$D$	$540 \ K$

The critical temperatures of some gases are given. Which gas shows the least adsorption on a definite amount of charcoal?

Gas Critical Temperature

$A$ $304 \ K$

$B$ $630 \ K$

$C$ $200 \ K$

$D$ $540 \ K$

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The critical temperatures of some gases are given. Which gas shows the least adsorption on a definite amount of charcoal? Gas Critical Temperature $A$ $304 \ K$ $B$ $630 \ K$ $C$ $200 \ K$ $D$ $540 \ K$