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What is difference between adsorption and biosorption?
Adsorption is the process by which a substance is attached to the surface of a solid material. Biosorption, on the other hand, involves the use of living or dead biomass to remove pollutants from a solution. Biosorption is a specific type of adsorption that relies on biological processes to remove contaminants.
Does physical adsorption have a low adsorption enthalpy?
Yes, physical adsorption typically has a low adsorption enthalpy due to weak van der Waals forces between the adsorbate and adsorbent. These interactions are reversible and non-specific, leading to lower enthalpies compared to chemical adsorption.
What is the kids definition of condensation?
How are we to know the difference between 'kids definition' and 'definition'.
What is the difference between film and dropwise condensation?
Film condensation occurs when a continuous liquid film forms on a surface during the condensation process, while dropwise condensation occurs when discrete droplets form on the surface. Dropwise condensation is more efficient in heat transfer compared to film condensation due to reduced resistance to heat transfer at the liquid-vapor interface.
What is the difference between vaporization sublimation and condensation?
Vaporization is the process of a substance changing from a liquid to a gas, sublimation is the process of a substance changing directly from a solid to a gas, and condensation is the process of a gas changing to a liquid. Each process involves the transformation of matter between different states.
What is the difference between condensation of water vapour and condensation of soft drinks after they evaporate?
the only difference there is that the soft drink condensation has a few additives in it. other than that there is no difference.
What is the difference between Drop wise condensation and film wise condensation?
heat transfer rate high
What is the Difference between evaporation condensation precipitation?
evaporation is a method to condensing
What is the main difference between condensation and evaporation?
evaporation is the process of water going from a liquid to a gas. condensation is the formation of clouds
What is the difference between precipitation and condensation.?
The difference between condensation and precipitation is that condensation is the transformation of state from a gas to a liqiud and precipitation is next stage after condensation where waterdroplets become larger and larger so as they fall under gravity in form of rain from the cloud.
What is difference between adsorption and biosorption?
Adsorption is the process by which a substance is attached to the surface of a solid material. Biosorption, on the other hand, involves the use of living or dead biomass to remove pollutants from a solution. Biosorption is a specific type of adsorption that relies on biological processes to remove contaminants.
What is the difference between liquefaction and condensation?
liquefaction-change from solid to liquid state condensation-change from gas to liquid-just opposite of evaporation
What is the difference between the boiling point and the condensation point material?
Both temperatures are the same.
What is difference between vaporization and condensation?
Condensation is where a vapour (gas) is cooled, and droplets of liquid form. Vapourisation is where a liquid is heated, and the liquid turns into vapour (gas).
What is the difference between the Freundlich and Langmuir adsorption isotherms?
ADSORPTION ISOTHERMA mathematical equation, which describes the relationship between pressure (p) of the gaseous adsorbateand the extent of adsorption at any fixed temperature, is called adsorption isotherm.The extent of adsorption is expressed as mass of the adsorbateadsorbed on one unit mass of the adsorbent.Thus, if x g of an adsorbateis adsorbed on m g of the adsorbent, thenExtent of adsorption =z/mVarious adsorption isotherms are commonly employed in describing the adsorption data.(1) Freundlichadsorption isotherm(i) Freundlichadsorption isotherm is obeyed by the adsorptions where the adsorbateforms a monomolecular layer on the surface of the adsorbent.x/m =kp1/n (Freundlichadsorption isotherm) orlog x/m =log k + 1/n log Pwhere x is the weight of the gas adsorbed by m gm of the adsorbent at a pressure p, thus x/m represents the amount of gas adsorbed by the adsorbents per gm (unit mass), k and n are constant at a particular temperature and for a particular adsorbent and adsorbate(gas), n is always greater than one, indicating that the amount of the gas adsorbed does not increase as rapidly as the pressure.(ii) At low pressure, the extent of adsorption varies linearly with pressure. x/m ∝ p'(iii) At high pressure, it becomes independent of pressure. x/m ∝ p0(iv) At moderate pressure x/m depends upon pressure raised to powers x/m ∝ p1/n(2) The Langmuir - adsorption isotherms(i) One of the drawbacks of Freundlichadsorption isotherm is that it fails at high pressure of the gas. Irving Langmuir in 1916 derived a simple adsorption isotherm, on theoretical considerations based on kinetic theory of gases. This is named as Langmuir adsorption isotherm.(a) Adsorption takes place on the surface of the solid only till the whole of the surface is completely covered with a unimolecularlayer of the adsorbed gas.(b) Adsorption consists of two opposing processes, namely Condensation of the gas molecules on the solid surface and Evaporation (desorption)ofthe gas molecules from the surface back into the gaseous phase.(c) The rate of condensation depends upon the uncovered (bare) surface of the adsorbent available for condensation. Naturally, at start when whole of the surface is uncovered the rate of condensation is very high and as the surface is covered more and more, the rate of condensation progressively decreases. On the contrary, the rate of evaporation depends upon the covered surface and hence increases as more and more of the surface is covered ultimately an equilibrium will be set up at a stage when the rate of condensation becomes equal to the rate of evaporation (adsorption equilibrium).(d) The rate of condensation also depends upon the pressure of the gas since according the kinetic theory of gases, the number of molecules striking per unit area is proportional to the pressure.Mathematically, x/m =ap/1+bp, where a and b are constants and their value depends upon the nature of gas (adsorbate),nature of the solid adsorbent and the temperature. Their values can be determined from the experimental data.Limitation of Langmuir theory(a) Langmuir's theory of unimolecularadsorption is valid only at low pressures and high temperatures.(b) When the pressure is increased or temperature is lowered, additional layers are formed. This has led to the modern concept of multilayer adsorption.
Does physical adsorption have a low adsorption enthalpy?
Yes, physical adsorption typically has a low adsorption enthalpy due to weak van der Waals forces between the adsorbate and adsorbent. These interactions are reversible and non-specific, leading to lower enthalpies compared to chemical adsorption.
The main difference between the nebular and condensation theories is that the condensation theory stresses the importance of to the formation of planets.?
The main difference between the nebular and condensation theories is their emphasis on different aspects of planet formation. Nebular theory focuses on the collapse of a rotating nebula to form a star and planets, while condensation theory emphasizes the role of solid particles (dust and gas) in the early stages of planet formation.
