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A chemist studied the phenomenon of adso...

A chemist studied the phenomenon of adsorption by putting blood charcoal in `KCL` solution. He observed difference in the behaviour with dilute `KCL` solution and with concentrated `KCL` solution. He also studied the adsorption of different gases on solid adsorbent and the effect of temperature on adsorption. He put forward a mathematical relationship relating `x//m` with equilibrium pressure.
The correct order of the adsorption of gases will be

A

`NH_(3)gtSO_(2)gtCO_(2)gtHCl`

B

`CO_(2)gtSO_(2)gtNH_(3)gtHCl`

C

`SO_(2)gtNH_(3)gtHClgtCO_(2)`

D

`HClgtSO_(2)gtNH_(3)gtCO_(2)`

Text Solution

Verified by Experts

The correct Answer is:
C
The critical temperature of the given gases is in the order: `SO_(2)gtNH_(3)gtHClgtCO_(2)` . Hence, their adsorption is in the same order.
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A chemist studied the phenomenon of adsorption by putting blood charcoal in KCL solution. He observed difference in the behaviour with dilute KCL solution and with concentrated KCL solution. He also studied the adsorption of different gases on solid adsorbent and the effect of temperature on adsorption. He put forward a mathematical relationship relating x//m with equilibrium pressure. Which of the following is correct ?

A chemist studied the phenomenon of adsorption by putting blood charcoal in KCL solution. He observed difference in the behaviour with dilute KCL solution and with concentrated KCL solution. He also studied the adsorption of different gases on solid adsorbent and the effect of temperature on adsorption. He put forward a mathematical relationship relating x//m with equilibrium pressure. Which of the following plot will be liner? (More than one correct)

A chemist studied the phenomenon of adsorption by putting blood charcoal in KCL solution. He observed difference in the behaviour with dilute KCL solution and with concentrated KCL solution. He also studied the adsorption of different gases on solid adsorbent and the effect of temperature on adsorption. He put forward a mathematical relationship relating x//m with equilibrium pressure. Which of the following result is oberved with the experiment of KCl solution ?

If a system at equilibrium is subjected to a change of any one of the factors such as concentration , pressure or temperature, the system adjusts itself in such a way so as to minimise the effect of that change. Effect of change in concentration on equilibrium: As we add or remove reactant (or product) the ratio of equilibrium concentratio become 'Q' (reaction quotient) and depending upon. QltK : equilibrium will shift ihn forward direction QgtK equilibrium will shift in backward direction Effect of change in pressure : If a system in equilibrium consists of gases, then the concentrations of all the components can be altered by changing the pressure. When the pressure on the system is increased, then equilibrium will shift in the direction in which there is decrease in number of moles i.e., towards the direction in which there is decrease in volume. Effect of change in pressure on melting point : There are two rypes of solids : Solids whose volume decreases on melting, e.g., ice, diamond, carborundum, magnesium nitride and quartz. Solid (higher volume) hArr Liquid (higher volume) The process of melting is facillitated at high pressure, thus melting point is lowered. Solid whose volume increase on melting, e.g., Fe, Cu, Ag, Au, etc. Solid (lower volume) hArr Liquid (higher volume) In this case the process of melring becomes difficult at high pressure, thuse melting point becomes high. Solubility of substances : When solid substance are dissolved in water, either heat is evolved. for endothermic solubility process solubility increase with increase in temperature. For exothemic solubility decrease with increase in temperature. Solubility of gases in liquids : when a gas dissolves in liquid, there is decreases in voolume. Thus increase of pressure will faavour the dissolution of gas in liquid. Effect of temperature : For endotherimic reacrtion as temperature increases reaction shift in backward direction A'X'(g) solute when dissolved in water heat is evolved. Then solubility of' X' will increase :

Adsorption is a surface phenomenon and it differs feom adsorption which occurs throughout the body of the substance which absorbs. In physisorption, the attractive forces are mainly van der Waals' forces while in chemisorption actual bonding occurs between the particles of adsorbent and adsorbente. Generally, easily liquefying gases are adsorbed more easily on the surface of a solid as compared to teh gases whihc are liquefied with difficult. Adsorption increases with the increases in pressure and decreases as the temperature is increases. The effect of pressure on adsorption is high if:

CENGAGE CHEMISTRY-SURFACE CHEMISTRY-Exercises Link Comprehension
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