A. Quantity adsorbed per unit mass is higher
B. Rate of adsorption is controlled by the resistance to surface reaction
C. Activation energy is very high
D. Heat of adsorption is very large
Related Mcqs:
- The heat of adsorption of a gas caused by Van der Waals forces of attraction and capillarity is equal to the heat of__________________?
A. Normal condensation
B. Wetting
C. Sum of A. and B.
D. Difference of A. and B. - The vapor pressure of a substance, at its melting point, is _____________ in the solid state as compared to that in the liquid state?
A. Less
B. More
C. Same
D. Either A. or B.; depends on the nature of the substance - Gases diffuse faster compared to liquids because of the reason that the liquid molecules_________________?
A. Are held together by stronger inter-molecular forces
B. Move faster
C. Have no definite shape
D. Are heavier - Boiling point of a solution as compared to that of the corresponding solvent is _________________?
A. Less
B. More
C. Same
D. Either more or less; depends upon the solvent - The atomic weight of helium is 4 times that of hydrogen. Its diffusion rate as compared to hydrogen will be _____________ times?
A. 1/2
B. 4
C. √2
D. 1/4 - 1m3 is approximately equal to_________________?
A. 28 litres
B. 35 ft3
C. 4.5 litres
D. 4.5 ft3 - Heat of solution in a system in which both solute and solvent are liquids is termed as_________________?
A. Heat of solvation
B. Heat of hydration
C. Standard integral heat of solution
D. Heat of mixing - Molar heat capacity of water in equilibrium with ice at constant pressure is_____________________?
A. 0
B. ∞
C. 1
D. None of these - The accumulation in a steady state combustion process, burning 1 kg mole of carbon with 1 kg mole of oxygen thereby producing 1 kg mole of carbon dioxide, is _____________ kg mole?
A. 1
B. 0
C. 16
D. 44 - The total number of atoms in 8.5 gm of NH3 is _______________ × 1023?
A. 9.03
B. 3.01
C. 1.204
D. 6.02
