Home
Class 12
CHEMISTRY
What is an adsorption isotherm ?...

What is an adsorption isotherm ?

Text Solution

Verified by Experts

The correct Answer is:
It represents the varition of the mass of the gas adsorbed per gram of the adsorbent with pressure at constant temperature.

(a) `2Br^(-)(aq) +H_(2)O_(2)(aq)+2H^(+)(aq) rarrBr_(2)(l)+2H_(2)O(l)`
rate=`k [H_(2)O_(2)][H^(+)][Br^(-)]=(-1)/2(d[Br^(-)])/(dt)=(-d[H_(2)O_(2)])/(dt)`
`R_(1)=k [H_(2)O_(2)][H^(+)][Br^(-)]=3R_(1)`
`-(d[Br^(-)])/(dt)=3R_(1)=k^(1)[H_(2)O_(2)][H^(+)][Br^(-)]`
(b) `(-1)/2(d[Br^(-)])/(dt)=(-d[H_(2)O_(2)])/(dt)=(-1)/2(d[H^(+)])/(dt)=(+d[Br_(2)])/(dt)=(+1)/2(d[H_(2)O])/(dt)`
`(-1)/2(d[Br^(-)])/(dt)=(-d[H_(2)O_(2)])/(dt)=(d[Br_(2)])/(dt)`
`1/2[(-d[Br^(-)])/(dt)]=(-d[H_(2)O_(2)])/(dt)=+(d[Br_(2)])/(dt)`
`1/2[7.2xx10^(-3)]=(-d[H_(2)O_(2)])/(dt)=+(d[Br_(2)])/(dt)`
3.6xx10^(-3)=(-d[H_(2)O_(2)])/(dt)=+(d[Br_(2)])/(dt)`
(c) No effect
(d) r_(1)=k [H_(2)O_(2)][H^(+)][Br^(-)]=(-d[Br^(-)]_(1))/(dt)`
`r_(2)=k ([H_(2)O_(2)])/(2) ([H^(+)])/2 ([Br^(-)])/2=(-d[Br^(-)]_(2))/(dt)`
`r_(2)=1/8[k(H_(2)O_(2))][H^(+)][Br^(-)]=(-d[Br^(-)]_(2))/(dt)`
`=1/8 r_(1)=(-d[Br^(-)]_(2))/(dt)`
Promotional Banner

Similar Questions

Explore conceptually related problems

What is adsorption isotherm ? Distinguish between Frundlich adsorption isotherm and Langmuir adsorption isotherm.

Which of the following is/are not true in Langmuir adsorption isotherm ?

The plot representing adsorption isotherm is

What is the equation form of Langmuir adsorption isotherm undre high pressure?

For Langmuir adsorption isotherm, which is correct?

The plot representing Langmuir's adsorption isotherm is :