Question

Though, theoretically the adsorption & desorption isotherms is expected to coincide but sometimes at least a part of the isotherms does not coincide and this phenomenon is known as adsorption hysterisis. In such cases, the desorption equilibrium pressure is __________ that obtained for adsorption.

a.

lower than

b.

higher than

c.

same as

d.

either same or higher than

Answer: (a).lower than

Interact with the Community - Share Your Thoughts

Uncertain About the Answer? Seek Clarification Here.

Understand the Explanation? Include it Here.

Q. Though, theoretically the adsorption & desorption isotherms is expected to coincide but sometimes at least a part of the isotherms does not coincide and this phenomenon is known as...

Similar Questions

Explore Relevant Multiple Choice Questions (MCQs)

Q. Experimental determination of __________ is done by wetted wall column method.

Q. Pore size of the molecular seive 5A is __________ mm.

Q. Swenson-Walker crystalliser is a __________ unit

Q. According to the Fenske equation, what will be the minimum number of plates required in a distillation column to separate an equimolar binary mixture of components A and B into an overhead fraction containing 99 mol% A and a bottom fraction containing 98 mol% B ? Assume that relative volatility (αᴀʙ = 2) does not change appreciably in the coloumn.

Q. Absorption (liquid-gas system) with evolution of heat as compared to isothermal absorption results in

Q. With increase in temperature, the mutual solubility of two liquids

Q. Pick out the wrong statement.

Q. The relative volatility of a binary mixture at the azeotropic composition is

Q. Relative volatility varies with the concentration of component for an ideal solution. The relative volatity of a binary mixture may be defined as the ratio of vapor pressure of component 'A' to that of component 'B', when

Q. Bound moisture is that liquid which exerts an equilibrium vapor pressure __________ that of the pure liquid at the given temperature.

Q. Lewis number (Le) is

Q. Pick out the wrong statement:

Q. In liquid extraction, if the selectivity is unity, then

Q. Paper industry employs __________ driers.

Q. Which of the following has the same dimension as mass diffusivity ?

Q. Pick out the wrong statement pertaining to the cooling towers.

Q. Perforated plate towers are unique for solvent extraction because, they provide

Q. In case of absorption & stripping, the interface of the liquid & gas phases are present in equilibrium, when the diffusional resistance of __________ is zero.

Q. Pick out the wrong statement pertaining to the analogy between equations of heat and mass transfer operations.

Q. The slope of the operating line for a single component co-current absorber when plotted in terms of mole ratio units is

Recommended Subjects

Are you eager to expand your knowledge beyond Basic Chemical Engineering? We've handpicked a range of related categories that you might find intriguing.

Click on the categories below to discover a wealth of MCQs and enrich your understanding of various subjects. Happy exploring!