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 \({\rm{100}}\,\,\,{\rm{kJ}}\,\,{\rm{mo}}{{\rm{l}}^{{\rm{ - 1}}}}\)
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 \((20-40 \mathrm{~kJ} /\) 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 \({\rm{100}}\,\,\,{\rm{kJ}}\,\,{\rm{mo}}{{\rm{l}}^{{\rm{ - 1}}}}\)
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 \((20-40 \mathrm{~kJ} /\) 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 \({\rm{100}}\,\,\,{\rm{kJ}}\,\,{\rm{mo}}{{\rm{l}}^{{\rm{ - 1}}}}\)
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 \((20-40 \mathrm{~kJ} /\) 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 \({\rm{100}}\,\,\,{\rm{kJ}}\,\,{\rm{mo}}{{\rm{l}}^{{\rm{ - 1}}}}\)
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 \((20-40 \mathrm{~kJ} /\) mol) (ii) In physisorption multimolecular layer form. (iii) Physisorption decreases with increase in temperature. (iv) Physisorption required low activation energy.
