Adsorption and absorption. Give one example.

Adsorption and absorption. Give one example.
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Distinguish between the following : Adsorption and absorption. Give one example.
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Muddy water is treated with alum in purification process, it is termed as : (1) emulsification (2) absorption (3) adsorption (4) coagulation

Description : Muddy water is treated with alum in purification process, it is termed as : (1) emulsification (2) absorption (3) adsorption (4) coagulation

Last Answer : (4) coagulation Explanation: Natural and wastewater contain small particulates that are suspended in water forming a colloid. These particles carry the same charges, and repulsion prevents them from combining into larger particulates to settle.

Absorption and adsorption:

Description : Absorption and adsorption:

Last Answer : Adsorption : the adhesion of a thin layer of molecules of some substance to the surface of a solid or liquid. Absorption: the ability of a substance to absorb light, noise, or energy, or the fact that it does so

Ion exchange process is similar to (A) Absorption (B) Adsorption (C) Extraction (D) Leaching

Description : Ion exchange process is similar to (A) Absorption (B) Adsorption (C) Extraction (D) Leaching

Last Answer : (B) Adsorption

For which of the following unit operations, Lewis number is ofsignificance?(A) Adsorption(B) Binary distillation(C) Gas absorption(D) Humidification

Description : For which of the following unit operations, Lewis number is ofsignificance? (A) Adsorption (B) Binary distillation (C) Gas absorption (D) Humidification

Last Answer : (D) Humidification

Deaeration (removal of O2 ) of water is done by (A) Rectification (B) Absorption (C) Ion-exchange (D) Adsorption

Description : Deaeration (removal of O2 ) of water is done by (A) Rectification (B) Absorption (C) Ion-exchange (D) Adsorption

Last Answer : (C) Ion-exchange

Langmuir equation is associated with (A) Leaching (B) Adsorption (C) Steam distillation (D) Multi-component absorption

Description : Langmuir equation is associated with (A) Leaching (B) Adsorption (C) Steam distillation (D) Multi-component absorption

Last Answer : (B) Adsorption

Hypersorption refers to a __________ process. (A) Fixed bed absorption (B) Moving bed absorption (C) Fixed bed adsorption (D) Moving bed adsorption

Description : Hypersorption refers to a __________ process. (A) Fixed bed absorption (B) Moving bed absorption (C) Fixed bed adsorption (D) Moving bed adsorption

Last Answer : (D) Moving bed adsorption

__________ is the separation technique used for desalination of sea water.(A) Thermal diffusion (B) Reverse osmosis (C) Adsorption (D) Absorption

Description : __________ is the separation technique used for desalination of sea water. (A) Thermal diffusion (B) Reverse osmosis (C) Adsorption (D) Absorption

Last Answer : (B) Reverse osmosis

Coke oven gas is stripped of its H2S and mercaptans content by (A) Absorption in wash oil (B) Adsorption on bog iron bed (C) Bubbling it through dilute sulphuric acid (D) Adsorption on silica gel

Description : Coke oven gas is stripped of its H2S and mercaptans content by (A) Absorption in wash oil (B) Adsorption on bog iron bed (C) Bubbling it through dilute sulphuric acid (D) Adsorption on silica gel

Last Answer : (B) Adsorption on bog iron bed

Hydrogen is recovered from coke oven gas on commercial scale (as practised in fertiliser plant at Rourkela) by (A) Adsorption on palladium (B) Cryogenic operations (low temperature cooling) (C) Absorption (using ethanolamine or pyrogallol solution) (D) None of these

Description : Hydrogen is recovered from coke oven gas on commercial scale (as practised in fertiliser plant at Rourkela) by (A) Adsorption on palladium (B) Cryogenic operations (low temperature cooling) (C) Absorption (using ethanolamine or pyrogallol solution) (D) None of these

Last Answer : (B) Cryogenic operations (low temperature cooling)

The rate expression for a heterogeneous catalytic reaction is given by, - rA = K.KA PA(1 + KA.PA + KR.PR), where K is surface reaction rate constant and KA and KR are absorption equilibrium constants of A and R respectively. If KR PR >> (1 + KA PA), the apparent activation energy EA is equal to (given E is the activation energy for the reaction and ΔHR and ΔHA are the activation energies of adsorption of R and A) (A) E (B) E + ΔHA (C) E + ΔHA - ΔHR ) (D) ΔHA + ΔHR

Description : The rate expression for a heterogeneous catalytic reaction is given by, - rA = K.KA PA(1 + KA.PA + KR.PR), where K is surface reaction rate constant and KA and KR are absorption equilibrium constants of A and R respectively. If KR PR ... R and A) (A) E (B) E + ΔHA (C) E + ΔHA - ΔHR ) (D) ΔHA + ΔHR

Last Answer : (C) E + ΔHA - ΔHR )

Separation of fresh water from sea water can be done by the __________ operation. (A) Osmosis (B) Reverse osmosis (C) Absorption (D) Adsorption

Description : Separation of fresh water from sea water can be done by the __________ operation. (A) Osmosis (B) Reverse osmosis (C) Absorption (D) Adsorption

Last Answer : (B) Reverse osmosis

The first step in infection of a host bacterial cells by a phage is A- adsorption B- absorption C- penetration D- replication

Description : The first step in infection of a host bacterial cells by a phage is A- adsorption B- absorption C- penetration D- replication

Last Answer : adsorption

What Is The Difference Between Absorption & Adsorption And Sorption?

Description : What Is The Difference Between Absorption & Adsorption And Sorption?

Last Answer : Answer : Absorption generally refers to two phenomena, which are largely unrelated. In one case, it refers to when atoms, molecules, or ions enter some bulk phase - gas, liquid or solid material ... different from absorption, in which a substance diffuses into a liquid or solid to form a solution.

How Can You Distinguish Between Sorption, Absorption And Adsorption?

Description : How Can You Distinguish Between Sorption, Absorption And Adsorption?

Last Answer : Answer : Sorption is a concomitant phenomenon of adsorption and absorption. Adsorption describes the phenomenon in which molecules that are present in a fluid (liquid or gas), concentrated spontaneously on a solid surface by a finite time.

The formation of pockets of gas in a liquid is called: w) absorption x) cavitation y) adsorption z) dissolving

Description : The formation of pockets of gas in a liquid is called: w) absorption x) cavitation y) adsorption z) dissolving

Last Answer : ANSWER: X -- CAVITATION

Muddy water is treated with alum in purification process, itis termed as : (1) emulsification (2)absorption (3) adsorption (4) coagulation

Description : Muddy water is treated with alum in purification process, itis termed as : (1) emulsification (2)absorption (3) adsorption (4) coagulation

Last Answer : coagulation

Which of the following processes is not an example of adsorption applied to gaseous separations? (A) Recovery of valuable solvent vapors from dilute mixture with air and other gases (B) Dehumidification of air and gas (C) Removal of objectionable odour and impurities from industrial gases (D) Decolouration of yellow glycerine

Description : Which of the following processes is not an example of adsorption applied to gaseous separations? (A) Recovery of valuable solvent vapors from dilute mixture with air and ... Removal of objectionable odour and impurities from industrial gases (D) Decolouration of yellow glycerine

Last Answer : (D) Decolouration of yellow glycerine

Give four uses of adsorption.

Description : Give four uses of adsorption.

Last Answer : Give four uses of adsorption.

Assertion :- The graphical representation of physical adsorption with temp is Reason :- This is weak adsorption & adsorption is exothermic process.

Description : Assertion :- The graphical representation of physical adsorption with temp is Reason :- This is weak adsorption & adsorption is exothermic process.

Last Answer : Assertion :- The graphical representation of physical adsorption with temp is Reason :- This is weak ... D. If both Assertion & Reason are False.

In frenudlich adsorption isotherm, the value of `1//n` is

Description : In frenudlich adsorption isotherm, the value of `1//n` is

Last Answer : In frenudlich adsorption isotherm, the value of `1//n` is A. 1 in case of physical adsorption B. 1 in ... in all case D. between 2 and 4 in all cases

If `x` is the amount of adsorbate and `m` is the amount of adsorbent, which of the following relation is related to adsorption process?

Description : If `x` is the amount of adsorbate and `m` is the amount of adsorbent, which of the following relation is related to adsorption process?

Last Answer : If `x` is the amount of adsorbate and `m` is the amount of adsorbent, which of the following relation is related to ... (x/m) D. `(x)/(m)= p xx T`

The Langmuir adsorption isotherm is deduced using the assumption.

Description : The Langmuir adsorption isotherm is deduced using the assumption.

Last Answer : The Langmuir adsorption isotherm is deduced using the assumption. A. The adsorption isotherm is ... D. The adsorption takes place in multilayers.

Assertion(A): Physical adsorption of molecules on the surface requires activation energy. Reason(R): Because the bonds of adsorbed molecules are broke

Description : Assertion(A): Physical adsorption of molecules on the surface requires activation energy. Reason(R): Because the bonds of adsorbed molecules are broke

Last Answer : Assertion(A): Physical adsorption of molecules on the surface requires activation energy. Reason(R): ... D. If both Assertion & Reason are False.

Assertion :- A sol of `As_(2)S_(3)` prepared by the action of `H_(2)S` on `As_(2)O_(3)` is negatively charge. Reason :- Due to adsorption of `S^(-2)`

Description : Assertion :- A sol of `As_(2)S_(3)` prepared by the action of `H_(2)S` on `As_(2)O_(3)` is negatively charge. Reason :- Due to adsorption of `S^(-2)`

Last Answer : Assertion :- A sol of `As_(2)S_(3)` prepared by the action of `H_(2)S` on `As_(2)O_(3) ... Reason is False. D. If both Assertion & Reason are False.

According to Freundlich adsorption isotherm, which of the following is correct ?

Description : According to Freundlich adsorption isotherm, which of the following is correct ?

Last Answer : According to Freundlich adsorption isotherm, which of the following is correct ? A. `(x)/(m ... the above are correct for different ranges of pressure

The ease of adsorption of the hydrated alkali metal ions on ion-exchange resins follows the order:

Description : The ease of adsorption of the hydrated alkali metal ions on ion-exchange resins follows the order:

Last Answer : The ease of adsorption of the hydrated alkali metal ions on ion-exchange resins follows the order: A. `K^(+)lt Na + ... (+)lt K^(+)lt Na^(+)lt Li^(+)`

Frendlich adsorption isotherms are properly represented as in

Description : Frendlich adsorption isotherms are properly represented as in

Last Answer : Frendlich adsorption isotherms are properly represented as in A. B. C. D.

An adsorption isotherm equation proposed by Langmuir is of the form `V = (V_(0)bPO)/((1 + bP))` where V is the volume of gas adsorbed at pressure P. F

Description : An adsorption isotherm equation proposed by Langmuir is of the form `V = (V_(0)bPO)/((1 + bP))` where V is the volume of gas adsorbed at pressure P. F

Last Answer : An adsorption isotherm equation proposed by Langmuir is of the form `V = (V_(0)bPO)/((1 + bP))` where V is ... of V on P can be depicted as B. C. D.

100 mL of 0.3 M acetic acid is shaken with 0.8 g wood charcoal. The final concentration of acetic acid in the solution after adsorption is 0.125 M. Th

Description : 100 mL of 0.3 M acetic acid is shaken with 0.8 g wood charcoal. The final concentration of acetic acid in the solution after adsorption is 0.125 M. Th

Last Answer : 100 mL of 0.3 M acetic acid is shaken with 0.8 g wood charcoal. The final concentration of acetic acid in the ... g` C. `1.31 g` D. `0.131 g`

Adsorption of a gas follows Freundlich adsorption isotherm. In the given plot, x is the mass of the gas adsorbed on mass m of the adsorbent at pressur

Description : Adsorption of a gas follows Freundlich adsorption isotherm. In the given plot, x is the mass of the gas adsorbed on mass m of the adsorbent at pressur

Last Answer : Adsorption of a gas follows Freundlich adsorption isotherm. In the given plot, x is the mass of the gas adsorbed on mass m ... p^(1//2)` D. `p^(1//4)`

Which one of the following is not a property of physical adsorption ?

Description : Which one of the following is not a property of physical adsorption ?

Last Answer : Which one of the following is not a property of physical adsorption ? A. Higher the ... , more the adsorption D. Unilayer adsorption occurs

Two compounds I and II are eluted by column chromatography (adsorption of `I gt II`). Which one of the following is a correct statement ?

Description : Two compounds I and II are eluted by column chromatography (adsorption of `I gt II`). Which one of the following is a correct statement ?

Last Answer : Two compounds I and II are eluted by column chromatography (adsorption of `I gt II`). Which one of the ... slower and has higher `R_(f)` value than I

Adsorption of a gas on a surface follows Freundlich adsorption isotherm. Plot of `"log " (x)/(m)` versus log P gives a straight line with slope equal

Description : Adsorption of a gas on a surface follows Freundlich adsorption isotherm. Plot of `"log " (x)/(m)` versus log P gives a straight line with slope equal

Last Answer : Adsorption of a gas on a surface follows Freundlich adsorption isotherm. Plot of `"log " (x ... of pressure. D. Adsorption is independent of pressure.

A particular adsorption process has the following characteristics : (i) It arises due to vander Waals forces and (ii) it is reversible. Identify the c

Description : A particular adsorption process has the following characteristics : (i) It arises due to vander Waals forces and (ii) it is reversible. Identify the c

Last Answer : A particular adsorption process has the following characteristics : (i) It arises due to vander Waals ... temperature. D. Energy of activation is low.

The following statement relate to the adsorption of gases on a solid surface. Identify the incorrect statement among them :

Description : The following statement relate to the adsorption of gases on a solid surface. Identify the incorrect statement among them :

Last Answer : The following statement relate to the adsorption of gases on a solid surface. Identify the ... are increased D. Entropy of adsorption is negative

For a linear plot of log(x/m) versus log p in a Freundlich adsorption isotherm, which of the following statements is correct ? (k and n are constants)

Description : For a linear plot of log(x/m) versus log p in a Freundlich adsorption isotherm, which of the following statements is correct ? (k and n are constants)

Last Answer : For a linear plot of log(x/m) versus log p in a Freundlich adsorption isotherm, which of the following ... Both k and 1/n appear in the slope term.

According to Freundlich adsorption isotherm, which of the following is correct?

Description : According to Freundlich adsorption isotherm, which of the following is correct?

Last Answer : According to Freundlich adsorption isotherm, which of the following is correct? A. `(x)/(m) ... the above are correct for different ranges of pressure

Which one of the following characteristics is not correct for physical adsorption ?

Description : Which one of the following characteristics is not correct for physical adsorption ?

Last Answer : Which one of the following characteristics is not correct for physical adsorption ? A. ... enthalpy and entropy of adsorption are negative.

The correct statement(s) pertiaining to the adsorption of a gas on a solid surface is (are)

Description : The correct statement(s) pertiaining to the adsorption of a gas on a solid surface is (are)

Last Answer : The correct statement(s) pertiaining to the adsorption of a gas on a solid surface is (are) A. ... it is very slow due to higher energy of activation.

Which of the following statements regarding adsorption is/are correct?

Description : Which of the following statements regarding adsorption is/are correct?

Last Answer : Which of the following statements regarding adsorption is/are correct? A. Extent of adsorption ... adsorption is dependent on the nature of adsorbent

Which of the following statements about physical adsorption is correct ?

Description : Which of the following statements about physical adsorption is correct ?

Last Answer : Which of the following statements about physical adsorption is correct ? A. It is always ... enthalpy of adsorption as compared to chemisorption.

Identify the appropriate graph between enthalpy and progress of physical adsorption.

Description : Identify the appropriate graph between enthalpy and progress of physical adsorption.

Last Answer : Identify the appropriate graph between enthalpy and progress of physical adsorption. A. B. C. D.

There is desorption of physical adsorption when

Description : There is desorption of physical adsorption when

Last Answer : There is desorption of physical adsorption when A. temperature is increased B. temperature is ... pressure is increased D. concentration is increased

Adsorption is the phenomenon in which a substance :

Description : Adsorption is the phenomenon in which a substance :

Last Answer : Adsorption is the phenomenon in which a substance : A. accumulates on the surface of the other ... close to the other substance D. None of these

Following is the variation of physical adsorption with temperature.

Description : Following is the variation of physical adsorption with temperature.

Last Answer : Following is the variation of physical adsorption with temperature. A. B. C. D.

What is adsorption?

Description : What is adsorption?

Last Answer : What is adsorption?

Explain two applications of adsorption.

Description : Explain two applications of adsorption.

Last Answer : Explain two applications of adsorption.

Explain how the adsorption of gas on solid varies with : a. nature of adsorbate and adsorbent 

Description : Explain how the adsorption of gas on solid varies with : a. nature of adsorbate and adsorbent 

Last Answer : Explain how the adsorption of gas on solid varies with : a. nature of adsorbate and adsorbent b. surface area of adsorbent

Adsorption is surface phenomenon. Explain.

Description : Adsorption is surface phenomenon. Explain.

Last Answer : Adsorption is surface phenomenon. Explain.