Question

2.0 g of H2 gas is adsorbed on 2.5 g of platinum powder at 300 K and 1 bar pressure. The volume of the gas adsorbed per gram of the adsorbent is _____ mL.
(Given : R= 0.083 L bar K–1 mol–1)

Answer 1

By ideal gas law,
$PV = nRT$
$V=\frac {(2×0.083×300)}{2×1}$
$V=24.9$ litre
∴ Volume of the gas adsorbed per gram of the adsorbent
$=\frac {24.9}{2.5}$
$=9.96\ L$
$= 9960\ ml$

So, the answer is $9960 \ ml$.