What is used to adsorb the poisonous gas obtained from the coal mine?

The correct order of the volume of $NH_3, CO_2$,and $H_2$ gases adsorbed on $1 \ g$ of charcoal at $300 \ K$ is:

Which forces are involved in physical adsorption?

Which of the following processes has a negative $\Delta S$ (change in entropy)?

The surface area of $1 \, g$ of activated charcoal is $1000 \, m^2$. Assuming complete coverage and unimolecular adsorption,if the radius of an ammonia molecule is $10^{-8} \, cm$,then the volume of ammonia adsorbed at $STP$ on $44/7 \, g$ of carbon will be ........ $L$. $(N_A = 6 \times 10^{23})$

Which of the following statements is incorrect for physical adsorption?