320647
Which of the following is a property of physisorption?
1 High specificity
2 Irreversibility
3 Non specificity
4 Chemical forces
Explanation:
Physisorption is non-specific in nature.
CHXII05:SURFACE CHEMISTRY
320648
A particular adsorption process has the following characteristics: (I) It arises due to van der Waal's forces and (II) It is reversible. Identify the correct statement that describes the above adsorption process:
1 Enthalpy of adsorption is greater than
2 Adsorption is monolayer.
3 Adsorption increases with increase in temperature.
4 Energy of activation is low.
Explanation:
Adsorption arises due to Van der Waal forces & reversible, hence it should be physisorption (physical adsorption). (i) Enthalpy of physisorption is low mol) (ii) In physisorption multimolecular layer form. (iii) Physisorption decreases with increase in temperature. (iv) Physisorption required low activation energy.
320647
Which of the following is a property of physisorption?
1 High specificity
2 Irreversibility
3 Non specificity
4 Chemical forces
Explanation:
Physisorption is non-specific in nature.
CHXII05:SURFACE CHEMISTRY
320648
A particular adsorption process has the following characteristics: (I) It arises due to van der Waal's forces and (II) It is reversible. Identify the correct statement that describes the above adsorption process:
1 Enthalpy of adsorption is greater than
2 Adsorption is monolayer.
3 Adsorption increases with increase in temperature.
4 Energy of activation is low.
Explanation:
Adsorption arises due to Van der Waal forces & reversible, hence it should be physisorption (physical adsorption). (i) Enthalpy of physisorption is low mol) (ii) In physisorption multimolecular layer form. (iii) Physisorption decreases with increase in temperature. (iv) Physisorption required low activation energy.
320647
Which of the following is a property of physisorption?
1 High specificity
2 Irreversibility
3 Non specificity
4 Chemical forces
Explanation:
Physisorption is non-specific in nature.
CHXII05:SURFACE CHEMISTRY
320648
A particular adsorption process has the following characteristics: (I) It arises due to van der Waal's forces and (II) It is reversible. Identify the correct statement that describes the above adsorption process:
1 Enthalpy of adsorption is greater than
2 Adsorption is monolayer.
3 Adsorption increases with increase in temperature.
4 Energy of activation is low.
Explanation:
Adsorption arises due to Van der Waal forces & reversible, hence it should be physisorption (physical adsorption). (i) Enthalpy of physisorption is low mol) (ii) In physisorption multimolecular layer form. (iii) Physisorption decreases with increase in temperature. (iv) Physisorption required low activation energy.
320647
Which of the following is a property of physisorption?
1 High specificity
2 Irreversibility
3 Non specificity
4 Chemical forces
Explanation:
Physisorption is non-specific in nature.
CHXII05:SURFACE CHEMISTRY
320648
A particular adsorption process has the following characteristics: (I) It arises due to van der Waal's forces and (II) It is reversible. Identify the correct statement that describes the above adsorption process:
1 Enthalpy of adsorption is greater than
2 Adsorption is monolayer.
3 Adsorption increases with increase in temperature.
4 Energy of activation is low.
Explanation:
Adsorption arises due to Van der Waal forces & reversible, hence it should be physisorption (physical adsorption). (i) Enthalpy of physisorption is low mol) (ii) In physisorption multimolecular layer form. (iii) Physisorption decreases with increase in temperature. (iv) Physisorption required low activation energy.
